CAMDEN, NJ - DECEMBER 9: Adam Young of Owl City performs onstage at the Q102 Jingle Ball. (Photo Jeff Fusco/Getty Images)
24. Outasight – Now Or Never
OTTAWA, ON - JANUARY 29: Outasight performs before the 2012 Tim Hortons NHL All-Star Game. (Photo by Gregory Shamus/Getty Images)
23. The Wanted – Chasing The Sun
LONDON, ENGLAND - JULY 27: The Wanted attend Nickelodeon joins Let's Move for 'Let's Move London' event . (Photo by Simon Burchell/Getty Images for Nickelodeon)
22. Chiddy Bang – Mind Your Manners
LAS VEGAS, NV - APRIL 28: Chidera "Chiddy" Anamege of the rap group Chiddy Bang performs during MTV's inaugural "O Music Awards." (Photo by Ethan Miller/Getty Images)
21. No Doubt - Settle Down
NEW YORK, NY - JULY 27: Gwen Stefani and Adrian Young of No Doubt perform on ABC's "Good Morning America." (Photo by Jamie McCarthy/Getty Images)
20. Calvin Harris ft. Ne-Yo – Let’s Go
LONDON, ENGLAND - JULY 08: Calvin Harris performs at Barclaycard Wireless Festival at Hyde Park. (Photo by Danny Martindale/Getty Images)
19. One Direction – One Thing
NEW YORK, NY - MAY 23: One Direction attends the "Men In Black 3" New York Premiere after party. (Photo by Stephen Lovekin/Getty Images)
18.Kelly Clarkson – Dark Side
Kelly Clarkson performs during the Pop Music Festival 2012 at Arena Anhembi in Sao Paulo, Brazil. (Photo credit YASUYOSHI CHIBA/AFP/GettyImages)
17. Cher Lloyd- Want You Back
LONDON, ENGLAND - JULY 08: Cher Lloyd performs at Barclaycard Wireless Festival. (Photo by Danny Martindale/Getty Images)
16. Rihanna – Where Have You Been
LOS ANGELES, CA - MAY 23: Rihanna performs onstage during Fox's "American Idol 2012" results show. (Photo by Mark Davis/Getty Images)
15. Flo Rida - Whistle
UNIVERSAL CITY, CA - JULY 22: Rapper Flo Rida performs onstage during the 2012 Teen Choice Awards. (Photo by Kevin Winter/Getty Images)
14. B.O.B ft. T. Swift – Both of Us
CARSON, CA - MAY 12: Singer B.o.B. performs at 102.7 KIIS FM's Wango Tango at The Home Depot Center. (Photo by Kevin Winter/Getty Images)
13. Grouplove – Tongue Tied
BEVERLY HILLS, CA - JUNE 28: Recording artists "Grouplove" attends the 27th Annual ASCAP Film & Television Music Awards. (Photo by Frederick M. Brown/Getty Images)
12. Karmin - Brokenhearted
HOLMDEL, NJ - MAY 20: Amy Heidemann of Karmin performs onstage at 103.5 KTU's KTUphoria at PNC Bank Arts Center. (Photo by Brian Ach/Getty Images)
11. Pink – Blow Me One Last Kiss
LOS ANGELES, CA - NOVEMBER 21: Singer Pink performs onstage during the 2010 American Music Awards. (Photo by Kevork Djansezian/Getty Images for DCP)
10. David Guetta - Titanium
INDIO, CA - APRIL 14: DJ David Guetta performs onstage at the 2012 Coachella Valley Music & Arts Festival. (Photo by Mark Davis/Getty Images for Coachella)
9. Usher - Scream
LOS ANGELES, CA - JULY 01: Usher onstage during the 2012 BET Awards. Photo by Christopher Polk/Getty Images For BET)
8. One Direction – What Makes You Beautiful
One Direction performs during the group's concert at the St James Theatre. (Photo credit Marty Melville/AFP/GettyImages)
7. Gotye – Somebody I Used To Know
INDIO, CA - APRIL 15: Musician Wouter "Wally" De Backer aka Gotye performs during Day 3 of the 2012 Coachella Valley Music & Arts Festival. (Photo by Michael Buckner/Getty Images for Coachella)
6. Ellie Goulding – Lights
HOLLYWOOD, CA - APRIL 11: Singer Ellie Goulding performs at the Third Annual ELLE Women In Music Event. (Photo by Michael Buckner/Getty Images)
5. Demi Lovato – Give Your Heart a Break
LOS ANGELES, CA - JULY 18: Singer Demi Lovato performs at the Greek Theatre. (Photo by Kevin Winter/Getty Images)
4. Gym Class Heros – The Fighter
CARSON, CA - MAY 12: Singer Travie McCoy of Gym Class Heroes performs at 102.7 KIIS FM's Wango Tango. (Photo by Kevin Winter/Getty Images)
3. Carly Rae Jepsen – Call Me Maybe
UNIVERSAL CITY, CA - JULY 22: Singer Carly Rae Jepsen performs onstage during the 2012 Teen Choice Awards. (Photo by Kevin Winter/Getty Images)
2. Maroon 5 - Payphone
NEW YORK, NY - JUNE 29: Singer Adam Levine of Maroon 5 performs on NBC's "Today." (Photo by Michael Loccisano/Getty Images)
1. Katy Perry – Wide Awake
LONDON, ENGLAND - JULY 03: Katy Perry attends the European Premiere of 'Katy Perry Part Of Me.' (Photo by Ian Gavan/Getty Images)
