I bolded the ones that I added...

13- What it Means to be a Friend
The 25th Annual Putnam County Spelling Bee - Why We Like Spelling
Aida - Dance of the Robe
Aladdin - A Whole New World
Anastasia - Once Upon a December
Annie - N.Y.C.
Annie Get Your Gun - Old Fashioned Wedding
Anything Goes - Anything Goes
Avenue Q - For Now
Bare- Plain Jane Fatass
Barnum - There is a Sucker Born Ev'ry Minute
Beauty and the Beast - Change in Me
Billy Elliot - Angry Dance
Bye Bye Birdie- An English Teacher
Cabaret - Maybe this Time
La Cage aux Folles - We are what we are
Camelot - Simple Joys of Maidenhood
Candide - Glitter and Be Gay
Cats - Mr. Mistoffelees
Chicago - Nowadays
A Chorus Line - At the Ballet
Company - Ladies who Lunch
The Drowsy Chaperone - As We Stumble Along
Evita - Another Suitcase, Another Hall
Fiddler on the Roof - To Life
A Funny Thing Happened on the Way to the Forum - Comedy Tonight
Grand Hotel - H-A-P-P-Y/We'll Take a Glass
Grease - There are Worse Things I Could Do
Guys and Dolls - Sue Me
Gypsy - If Mama was Married
Hairspray - Welcome to the 60's
High School Musical - What I've Been Looking for (Reprise)
I Love You Because - Because of You
In the Heights - The Top of the World
Into the Woods - Your Fault
Jekyll and Hyde - In his Eyes
Jesus Christ Superstar - Everything's Alright
Joseph and the Amazing Technicolor Dreamcoat - Stone the Crows
Kiss Me, Kate - Too Darn Hot
Legally Blonde - So Much Better
The Lion King - Grassland Chant
The Little Mermaid - Sweet Child
Little Shop of Horrors - Suddenly Seymour
Little Women - The Fire Within Me
Mamma Mia! - Money, Money Money
Mary Poppins - Step in Time
Meet Me in St. Louis - Skip to My Lou
Les Misérables - The Confrontation (Close second: Fantine's arrest)
Mulan - I'll Make a Man Out of You
My Fair Lady - On the Street Where You Live
Oklahoma! - I Cain't Say No!
Once on this Island - And the Gods Heard Her Prayer
Oliver! - Who Will Buy
The Phantom of the Opera - Notes
The Pirate Queen - Woman
Rent - Finale B
Show Boat - Ol' Man River
Song and Dance - Take that look off your face
Songs for a New World - Stars and the Moon
The Sound of Music - The Sound of Music
South Pacific - Honey Bun
Spamalot - The Song that Goes Like This
Spring Awakening - The Dark I Know Well
Sweeney Todd - Poor Thing
Tarzan - I Need to Know
Thoroughly Modern Millie - Forget About the Boy
West Side Story - America
Wicked - As Long As You're Mine
The Wild Party - Life at the Party
The Wizard of Oz - Over the Rainbow
Young Frankenstein - Puttin' on the Ritz
Zanna Don't - Be A Man
[title of show] - Die, Vampire, Die!

Aida - My Strongest Suit
Annie - Maybe
Anything Goes - Anything goes
Avenue Q - It Sucks to Be Me
Beauty and the Beast - Home
Billy Elliot - Electricity
Candide - Glitter and Be Gay
Chess - I know him so well
Chicago - My own best friend
Guys and Dolls - If I were a bell
Gypsy - Rose's Turn
Hair - Let the Sunshine In
Hairspray - Mamma I'm a big girl now
Hello, Dolly! - Don't rain on my parade
Into the Woods - Giants in the sky
Jekyll and Hyde - Someone Like You
Jesus Christ Superstar - Gethesame
The King and I - My lord and master
Les Miserables - On my own
The Lion King - Shadowland
The Little Mermaid - If only
Mary Poppins - Brimstone and Treacle
Miss Saigon - The fall of saigon
My Fair Lady - Just you wait Henry Higgins
Oliver! - As longas he needs me
The Phantom of the Opera - Wishing you were somehow here again
Rent -Out tonight
The Sound of Music - I have confidence
South Pacific - Younger than springtime
Sweeney Todd - Green finch and linnet bird
West Side Story - Tonight
Wicked - The wizard and I

Anything Goes - De-Lovely
Avenue Q - I Wish I Could Go Back to College
Big River - Leaving's Not the Only Way To Go
Billy Elliot - Once We Were Kings
Cabaret - Don't Tell Mama
Cats - Skimbleshanks
Chess - Anthem
Chicago - Mr Cellophane
Children of Eden - Ain't It Good
Chitty Chitty Bang Bang - the Bombie Samba
Company - Being Alive
Fiddler on the Roof - Sabbath Prayer
42nd Street - Lullaby Of Broadway
The Full Monty - You Walk With Me
Godspell - By Your Side
Grease - Born to Hand Jive
Guys and Dolls - Sit Down You're Rockin' The Boat
Gypsy - Rose's Turn
Hair - Flesh Failures/Let The Sun Shine In
I Love You, You're Perfect, Now Change - Shouldn't I Be Less In Love With You
Into the Woods - Agony
Jesus Christ Superstar - Heaven On Their Minds
Joseph ATATD - Pharaoh's Song
La Cage aux Folles - I Am What I Am
Legally Blonde - Oh My God You Guys
Les Miserables - the Finale
The Lion King - Circle of Life
A Little Night Music - Send in the Clowns
Little Shop of Horrors - The Meek Shall Inherit
Love Never Dies - Till I Hear You Sing
Mary Poppins - Step in Time
Meet Me In St Louis - Have Yourself a Merry Little Christmas
Me and My Girl - Leaning on a Lamppost
Miss Saigon - I Still Believe
My Fair Lady - I Could Have Danced All Night
Nine - Be On Your Own
Oklahoma - People Will Say We're In Love reprise
Oliver - As Long as He Needs Me
Phantom of the Opera - Music of the Night
Pirates of Penzance - With Cat-like Tread
The Producers - I Wanna Be A Producer
Rocky Horror Show - Sweet Transvestite
Sideshow - Who Will Love Me As I Am?
The Sound of Music - Confidence
Starlight Express - One Rock 'n Roll Too Many
Sweeney Todd - the Johanna quartet in Act 2
West Side Story - Tonight quintet
Wicked - The Wizard and I
Witches of Eastwick - I Wish I May
The Wizard of Oz - Over the Rainbow

1776 - Cool, Considerate Men
The 25th Annual Putnam County Spelling Bee - The I Love You Song
Aida - Written in the Stars
Annie - Easy Street
Assassins - The Ballad of Booth
Avenue Q - Fantasies Come True
Bare - Are You There?
Beauty and the Beast - If I Can't Love Her
Big River - Waitin' For the Light to Shine Reprise
Bye Bye Birdie - Got a Lot of Living to Do
Cabaret - Maybe This Time
Camelot - Before I Gaze at You Again
Carousel - Soliloquy
Chess - Endgame
A Chorus Line - At the Ballet
Cinderella - A Lovely Night
Company - Getting Married Today
Crazy For You - Naughty Baby
Curtains - I Miss the Music
Dreamgirls - Listen
Fiddler on the Roof - Miracle of Miracles
Follies - Losing My Mind
Funny Girl - I'm the Greatest Star
Godspell - By My Side
Guys and Dolls - Sue Me
Hair - Going Down
Hairspray - Mama I'm a Big Girl Now
Hello, Dolly - Ribbons Down My Back
Into the Woods - No More
Jekyll and Hyde - Angst 2 (haha)
The King and I - Something Wonderful
Kiss Me, Kate - Always True to You (In My Fashion)
Knickerbocker Holiday - It Never Was You
The Last Five Years - Nobody Needs to Know
Les Miserables - Stars
A Little Night Music - Now/Later/Soon
Little Shop of Horrors - The Meek Shall Inherit
Little Women - Some Things Are Meant To Be
The Lord of the Rings - Wonder
Marie Christine - Way Back to Paradise
Merrily We Roll Along - Not a Day Goes By
Miss Saigon - Why, God, Why?
The Music Man - My White Knight
My Fair Lady - Without You
Next to Normal - I've Been
Nine - Unusual Way
Oliver - Who Will Buy?
Once Upon a Mattress - Sensitivity
Parade - You Don't Know This Man
The Phantom of the Opera - Wandering Child
Ragtime - Your Daddy's Son
Rent - Goodbye, Love
The Secret Garden - Lily's Eyes
Seussical - Alone in the Universe
Show Boat - Can't Help Lovin' Dat Man
Songs for a New World - Not Afraid
The Sound of Music - How Do You Solve a Problem Like Maria?
South Pacific - You've Got To Be Carefully Taught
Spamalot - The Song That Goes Like This
Spring Awakening - Touch Me
Sunday in the Park with George - We Do Not Belong Together
Sweeney Todd - Johanna Quartet
tick, tick...BOOM! - Louder Than Words
[title of show] - Die, Vampire, Die!
Victor/Victoria - Le Jazz Hot
West Side Story - A Boy Like That/I Have a Love
The Will Rogers Follies - No Man Left for Me

Annie- Little Girls
Beauty and the Beast- A Change in Me
Billy Elliot- Once We Were Kings
Bye, Bye Birdie- An English Teacher
Fame- The Teacher's Argument
Footloose- Somebody's Eyes
Good News- You're the Cream in My Coffee
Hair- The Flesh Failures / Eyes Look Your Last / Let the Sun Shine In
Into the Woods- On the Steps of the Palace
Joseph and the Amazing Technicolor Dreamcoat- Close Every Door
La Cage aux Folles- With Anne on My Arm
Little Women- Five Forever
My Fair Lady- On the Street Where You Live
Next to Normal- Superboy and the Invisible Girl
Oklahoma!- Kansas City
Peter Pan- Hook's Waltz
Phantom of the Opera- The Point of No Return
The Producers- 'Til Him
Rooms: A Rock Romance- Scottish Jewish Princess
School House Rock Live, Jr!- A Noun Is a Person, Place, or Thing
Shrek- I Know It's Today
Snoopy- Edgar Allen Poe
South Pacific- Some Enchanted Evening
Sweeney Todd- Johanna
Titanic- Finale
Treasure Island
West Side Story- Gee, Officer Krupke
Wicked- As Long As You're Mine
You’re a Good Man, Charlie Brown- My New Philosophy

Added or changed those in BOLD

The 25th Annual Putnam County Spelling Bee - The I Love You Song
The Addams Family - When You're an Addams
Aida - Elaborate Lives
Aladdin - Arabian Nights
Anastasia - Once Upon a December
Annie - We'd Like To Thank You Herbert Hoover
Annie Get Your Gun - They Say It's Wonderful
Anyone Can Whistle - Everybody Says Don't
Anything Goes - I Get a Kick Out of You
Aspects of Love - Seeing is Believing
Assassins - Another National Anthem
Avenue Q - There's a Fine, Fine Line
Barnum - There is a Sucker Born Ev'ry Minute
Bat Boy - Show You a Thing or Two
Beauty and the Beast - If I Can't Love Her
Billy Elliot - Electricity
Bye Bye Birdie - Kids
Cabaret - Maybe This Time
La Cage aux Folles - I am What I am
Camelot - If Ever I Would Leave You
Candide - Glitter and Be Gay
Carousel - Soliloquy
Cats - The Jellicle Ball
Chess - Nobody's Side
Chicago - Cell Block Tango
A Chorus Line - At the Ballet
City of Angels - Double Talk (Stine)
The Civil War - By the Sword / Sons of Dixie
Company - Getting Married Today
The Count of Monte Cristo - A Story Told
Dirty Rotte Scoundrels - Overture
Dracula - Zu Ende
Evening Primrose - If You Can Find Me I'm Here
Evita - Goodnight and Thank You
Fame - The Teacher's Argument
The Fantasticks - Try to Remember
Finian's Rainbow - When I'm Not Near the Girl I Love
First Lady Suite - The Smallest Thing
Follies - The Road You Didn't Take
The Frogs - Instructions to the Audience
Funny Girl - Don't Rain On My Parade
A Funny Thing Happened on the Way to the Forum - Comedy Tonight
Grand Hotel - Roses at the Station
Grease - There are Worse Things I Could Do
Guys and Dolls - Rockin' the Boat
Gypsy - Everything's Coming Up Roses
Hairspray - You Can't Stop the Beat
Honk - You Can Play With Your Food
How to Succeed Business Without Even Trying - Happy to Keep His Dinner Warm
I Love My Wife - Love Revolution
I Love You, You're Perfect, Now Change! - Tear Jerk
Into the Woods - Your Fault
Jekyll and Hyde - Dangerous Game
Jesus Christ Superstar - Gethsemane
The King and I - Puzzlement
Kiss Me, Kate - Too Darn Hot
Kiss of the Spider Woman - Kiss of the Spider Woman
Kristina från Duvemåla - Du Måste Finnas
The Last Five Years - Climbing Up-Hill
Legally Blonde - Legally Blonde
The Life - People Magazine
Li'l Abner - It's a Typical Day
The Lion King - Circle of Life
Little Fish - Simple Creature
The Little Mermaid - Her Voice
A Little Night Music - A Weekend In the Country
Little Shop of Horrors - Suddenly Seymour
Love Never Dies - 'Till I Hear You Sing
Mame - Open a New Window
Mamma Mia! - The Winner Takes it All
Man of La Mancha - Man of La Mancha
Marie Christine - I Don't Hear the Ocean
Martin Guerre - I Will Make You Proud
Merrily We Roll Along - Our Time
Les Misérables - One Day More
Miss Saigon - This is the Hour
Mulan - I'll Make a Man Out of You
My Fair Lady - Hymn to Him
Next to Normal - I'm Alive
Nine - Overture Delle Donde
Notre-Dame de Paris - Belle
Oklahoma! - Oh, What a Beautiful Morning
Oliver! - Where is Love?
On a Clear Day You Can See Forever - What Did I Have That I Don't Have?
On the Twentieth Century - On the Twentieth Century
Pacific Overtures - Please, Hello!
Parade - Old Red Hills of Home
Passion - Is This What You Call Love?
Phantom - Home
The Phantom of the Opera - Prima Donna
Pippin - Corner of the Sky
The Pirate Queen - I'll Be There
Rent - I'll Cover You
Road Show - The Best Thing That Ever Has Happened
Rudolf - Wohin Führt Mein Weg?
Saturday Night - Saturday Night
The Scarlet Pimpernel - Into the Fire
Show Boat - Can't Help Lovin' Dat Man
Shrek - Who I'd Be
Song and Dance - Unexpected Song
Songs for a New World - I'm Not Afraid of Anything
The Sound of Music - No Way to Stop it
South Pacific - You Have to Be Carefully Taught
Spring Awakening - Bitch of Living
Starlight Express - There's Me
Sunday In the Park With George - We Do Not Belong Together
Sunset Boulevard - Too Much In Love to Care
Sweeney Todd - The Final Ballad of Sweeney Todd
Tarzan - Two Worlds
They're Playing Our Song - They're Playing Our Song
Titanic - To the Lifeboats / We'll Meet Tomorrow
We Will Rock You - Bohemian Rhapsody
West Side Story - Tonight (Quintet)
Which Witch - 2.665.866.746.664 Little Devils
Wicked - No One Mourns the Wicked
The Wild Party (LaChiusa) - People Like Us
The Wild Party (Lippa) - Life at the Party
The Wizard of Oz - Over the Rainbow
You're a Good Man, Charlie Brown - Happiness
[title of show] - Die, Vampire, Die!

Have to go, I'll edit more later!