Contestants:

Alejandro:
Alejandro-Lady GaGa
Womanizer-Britney Spears

Beth:
Wannabe-Spice Girls
آپ Belong With Me-Taylor Swift

Bridgette:
About آپ Now-Sugababes
According To You-Orianthi
Baby Love-Nicole Scherzinger
Beep-Pussycat Dolls
Chemistry-Velvet
Determinate-Limonade Mouth
E.T.-Katy Perry Ft. Kanye West
I'll Always Remember You-Hannah Montana
I'm Like A Bird-Nelly Furtado
My Happy Ending-Avril Lavigne
One Girl Revolution-Superchick
Take My Breath Away-Berlin

Cody:
Almost-Bowling For Soup
Dead And Gone-Justin Timberlake Ft. T.I.
OMG-Usher
Wake Up Call-Maroon 5
Yeah 3x-Chris Brown

Courtney:
4 In The Morning-Gwen Stefani
A سال Without Rain-Selena Gomez
Get Back-Demi Lovato
If We Ever Meet Again-Timbaland Ft. Katy Perry
Impossible-Shontelle
Stickwitu-Pussycat Dolls
Tell Me Something I Don't Know-Selena Gomez
Toxic-Britney Spears

DJ:
I Need A Doctor-Dr. Dre Ft. Eminem VS. Skylar Grey
No Air-Jordin Sparks Ft. Chris Brown

Duncan:
I Hate Everything About You-Three Days Grace
Riot-Three Days Grace
Schrei-Tokio Hotel

Eva:
All About Us-T.A.T.U
Man, I Feel Like A Woman-Shania Twain
So What-P!nk
Stupid Girls-P!nk

Ezekiel:
Apologize-One Republic Ft. Timbaland
Home-Chris Daughtry
What About Now-Chris Daughtry

Geoff:
Champagne-Shaggy
Party Like A Rockstar-Shop Boyz
Party Rock Anthem-LMFAO
Replay-Iyaz

Gwen:
Bring Me To Life-Evanescence
Hate That I Love You-Rihanna Ft. Ne-Yo
Misery Business-Paramore

Harold:
Going Under-Evanescence
White And Nerdy-Weird Al Yankovic

Heather:
Blah Blah Blah-Ke$ha
Genie In A Bottle-Christina Aguilera
Like Me-Girlicious
Love Is Wicked-Brick & Lace
S&M-Rihanna
Your Love Is My Drug-Ke$ha

Izzy:
Celebration (RMX)-Madonna Ft. Akon
Midnight Sun-Elena Gheorghe
Real Wild Child-Everlife
Spinnin' Around-Jump 5

Justin:
4 Minutes-Madonna Ft. Justin Timberlake
One Time-Justin Bieber
Sexyback-Justin Timberlake

Katie&Sadie:
Hot-Avril Lavigne
Stay My Baby-Miranda Cosgrove

LeShawna:
Crazy In Love-Beyonce Ft. Jay-Z
Do It Like A Dude-Jessie J
سونا Dust-DJ Fresh
Obsessed-Mariah Carey
Rude Boy-Rihanna
Sugar-FloRida Ft. Wynter Gordon

Lindsay:
Commander-David Guetta Ft. Kelly Rowland
I Hate This Part-Pussycat Dolls
Love Game-Lady GaGa
Right There-Nicole Scherzinger Ft. 50 Cent

Noah:
Do آپ Know?-Enrique Iglesias
Morning After Dark-Timbaland Ft. Soshy & Nelly Furtado
Viva La Vida-Coldplay

Owen:
I Wanna Love You-Akon

Sierra:
If I Had You-Adam Lambert
F**kin' Perfect-P!nk

Trent:
Cupid's Chokehold-Gym Class Heroes
Hey, Soul Sister-Train
Stuck With Each Other-Shontelle Ft. Akon
What Hurts The Most-Rascal Flatts

Tyler:
All I Ever Wanted-Basshunter
Stronger-Kanye West

Hosts:

Blaineley:
Heartbeat-Enrique Iglesias Ft. Nicole Scherzinger
Meet Me Halfway-Black Eyed Peas
S.O.S-Rihanna

Chef Hatchet:
Heartless-Kanye West

Chris McLean:
Price Tag-Jessie J Ft. B.O.B
Best Behaviour-N-Dubz

I repaired it because:
-I typed alphabetical
-I was putting مزید theme songs

Sorry if I was putting too many songs to Bridgette and Courtney.But what can I do if almost all the songs fit them?