#20 Favorite Song-Colbie Caillat

(Photo by Rodrigo Varela/Getty Images for Architectural Digest)

#19 We Found Love-Rihanna

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#18 Shadow Days-John Mayer

(photo by Getty Images)

#17 Wild Ones-Flo Rida Featuring Sia

(Photo by J. Dennis/Einstein/NBAE via Getty Images)

#16 Call Me Maybe-Carly Rae Jepsen

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#15 Payphone-Maroon 5 Featuring Wiz Khalifa

(photo by Getty Images)

#14 It Will Rain-Bruno Mars

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#13 The A Team-Ed Sheeran

(Photo by Samir Hussein/Getty Images)

#12 Domino-Jessie J

(Photo by Gareth Cattermole/Getty Images)

#11 Turn Me On-Nicki Minaj

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#10 What Makes You Beautiful-One Direction

(Photo credit Marty Melville/AFP/Getty Images)

#9 Starships-Nicki Minaj

(Photo by Dimitrios Kambouris/Getty Images)

#8 Glad You Came-The Wanted

(Photo/ Christopher Polk, Getty Images)

#7 Part Of Me-Katy Perry

(Photo by Kevin Winter/Getty Images)

#6 I Won't Give Up-Jason Mraz

Jason Mraz (L) gestures while posing on arrival for the 2012 MusiCares Person of the Year Tribute honouring Paul McCartney as Person of the Year on February 10, 2012 in Los Angeles, California. The MusiCares Person of the Year tribute is one of the most prestigious events held during Grammy Week ahead of the 54th Annual Grammy Awards on February 12. AFP PHOTO / Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

#5 Drive By-Train

(Photo by Ethan Miller/Getty Images)

#4 Somebody That I Used To Know-Gotye

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#3 Stronger-Kelly Clarkson

(Photo by Kevin Winter/Getty Images)

#2 Rumour Has It-Adele

(Photo by Dave J Hogan/Getty Images)

#1 We Are Young-Fun.

(photo courtesy of Road Runner Records)