25. Adele – Rumor Has It

LONDON, ENGLAND - FEBRUARY 21: (UK TABLOID NEWSPAPERS OUT) Adele performs at The Brit Awards 2012 at The O2 Arena on February 21, 2012 in London, England. (Photo by Dave Hogan/Getty Images)

24. Gotye – Somebody I Used To Know

SYDNEY, AUSTRALIA - NOVEMBER 27: Wally De Backer poses with the award for Male Artist of the Year at the 2011 ARIA Awards at Allphones Arena on November 27, 2011 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)

23. Calvin Harris – Feels So Close

CHELMSFORD, ENGLAND - AUGUST 22: Calvin Harris performs during Day two of V Festival 2010 on August 22, 2010 in Chelmsford, England. (Photo by Gareth Cattermole/Getty Images)

22. Coldplay ft. Rihanna –Princess Of China

LONDON, ENGLAND - FEBRUARY 21: (UK TABLOID NEWSPAPERS OUT) Jonny Buckland, Guy Berryman, Chris Martin and Will Champion of Coldplay accept their Best British Band Award at The Brit Awards 2012 at The O2 Arena on February 21, 2012 in London, England. (Photo by Dave Hogan/Getty Images)

21. Karmin – Brokenhearted

NEW YORK, NY - FEBRUARY 14: Musicians Amy Heidemann and Nick Noonan of Karmin attend the Diesel Black Gold Fall 2012 fashion show during Mercedes-Benz Fashion Week at Pier 57 on February 14, 2012 in New York City. (Photo by Chelsea Lauren/Getty Images for Mercedes-Benz Fashion Week)

20. One Direction – That’s What Makes You Beautiful

NEW YORK, NY - MARCH 14: (L-R) Musicians Niall Horan, Liam Payne, Zayn Malik, Louis Tomlinson, and Harry Styles of One Direction attend the 2012 Nickelodeon Upfront presentation at Rose Theater, Jazz at Lincoln Center on March 14, 2012 in New York City. (Photo by Larry Busacca/Getty Images)

19. Jason DeRulo – Breathing

LONDON, ENGLAND - DECEMBER 03: Jason Derulo attends day one of Jingle Bell Ball at O2 Arena on December 3, 2011 in London, England. (Photo by Tim Whitby/Getty Images)

18. Nicki Minaj – Starships

ORLANDO, FL - FEBRUARY 26: Singer Nicki Minaj performs during the 2012 NBA All-Star Game at the Amway Center on February 26, 2012 in Orlando, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ronald Martinez/Getty Images)

17. B.O.B. – So Good

NEW YORK, NY - MARCH 01: Musician B.O.B visits SiriusXM Studios on March 1, 2012 in New York City. (Photo by Neilson Barnard/Getty Images)

16. Katy Perry – Part Of Me

BERLIN, GERMANY - MARCH 22: Katy Perry performs at the Echo Awards 2012 at Palais am Funkturm on March 22, 2012 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images)

15. Gavin DeGraw – Not Over You

NEW ORLEANS, LA - MARCH 01: Gavin DeGraw attends The Escpae to Total Rewards at Woldenberg Park on March 1, 2012 in New Orleans, Louisiana. (Photo by Skip Bolen/Getty Images for Caesars Entertainment)

14. Chris Brown – Turn Up The Music

ORLANDO, FL - FEBRUARY 26: Recording artist Chris Brown sits courtside during the 2012 NBA All-Star Game at the Amway Center on February 26, 2012 in Orlando, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ronald Martinez/Getty Images)

13. Train – Drive By

LAS VEGAS, NV - MARCH 10: Train singer Pat Monahan performs during the opening night of The Smith Center for the Performing Arts on March 10, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images for The Smith Center)

12. Hot Chelle Rae ft. New Boyz – I Like I Like That

NASHVILLE, TN - MARCH 22: (L-R) Nash Overstreet, Ryan Follese and Ian Keaggy of Hot Chelle Rae play at Ryman Auditorium on March 22, 2012 in Nashville, Tennessee. (Photo by Ed Rode/Getty Images for Vevo)

11. Flo Rida – Wild Ones

MIAMI, FL - FEBRUARY 23: Muscian Flo Rida poses for a photo during the game between the New York Knicks and Miami Heat on February 23, 2012 at American Airlines Arena in Miami, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory copyright notice: Copyright NBAE 2012 (Photo by Issac Baldizon/NBAE via Getty Images)

10. The Wanted – Glad You Came

MADRID, SPAIN - DECEMBER 09: (L to R) Silva Kaneswaren, Tom Parker, Max George, Nathan Sykes and Jay McGuiness of "The Wanted" attend "40 Principales Awards" 2011 photocall at Palacio de los Deportes on December 9, 2011 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

9. Flo Rida – Good Feelin

SANTA MONICA, CA - FEBRUARY 18: Recording artist Flo Rida attends the 2nd Annual Cartoon Network Hall of Game Awards at Barker Hangar on February 18, 2012 in Santa Monica, California. (Photo by David Livingston/Getty Images)

8. Jessie J – Domino

LONDON, ENGLAND - FEBRUARY 24: Jessie J attends the launch of 'The Voice UK' at Soho Hotel on February 24, 2012 in London, England. (Photo by Ben Pruchnie/Getty Images)

7. Wiz Kalifah ft. Snoop – Young, Wild, + Free

INDIANAPOLIS, IN - FEBRUARY 02: Rapper Wiz Khalifa performs on stage at Bankers Life Fieldhouse on February 2, 2012 in Indianapolis, Indiana. (Photo by Michael Buckner/Getty Images)

6. Drake ft. Rihanna – Take Care

LOS ANGELES, CA - FEBRUARY 20: Singer Rihanna and Rapper Drake perform during half-time during the 2011 NBA All-Star Game on February 20, 2011 at the Staples Center in Los Angeles, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2011 NBAE (Photo by Jesse D. Garrabrant/NBAE via Getty Images)

5. Gym Class Heros – Ass Back Home

SYDNEY, AUSTRALIA - MARCH 09: Gym Class Heroes perform on stage at the launch of Nova's Red Room on March 9, 2012 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)

4. Kelly Clarkson – Stronger

INDIANAPOLIS, IN - FEBRUARY 05: Singer Kelly Clarkson exits after performing the national anthem during the Bridgestone Super Bowl XLVI Pregame Show at Lucas Oil Stadium on February 5, 2012 in Indianapolis, Indiana. (Photo by Christopher Polk/Getty Images)

3. David Guetta ft. N. Minaj – Turn Me On

BERLIN, GERMANY - MARCH 22: David Guetta speaks after receiving the Best Act Club/Dance International Award at the Echo Awards 2012 at Palais am Funkturm on March 22, 2012 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images)

2. Pitbull ft. Chris Brown – International Love

ORLANDO, FL - FEBRUARY 26: Recording artist Pitbull performs at halftime during the 2012 NBA All-Star Game at the Amway Center on February 26, 2012 in Orlando, Florida. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Ronald Martinez/Getty Images)

1. Adele – Set Fire To The Rain

British singer-songwriter Adele poses on the red carpet arriving at the BRIT Awards 2012 in London on February 21, 2012. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)