#20 Afrojack - Take Over Control ft. Eva Simons

LAS VEGAS, NV - JUNE 07: DJ Afrojack performs during the "Unmasking" grand opening of Mizumi Restaurant at Wynn Las Vegas on June 7, 2012 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for Mizumi)

#19 Flo Rida - Good Feeling

NEW YORK, NY - JULY 06: Rapper/singer Flo Rida performs on NBC's "Today" at Rockefeller Plaza on July 6, 2012 in New York City. (Photo by Mike Coppola/Getty Images)

#18 fun. We Are Young ft. Janelle Monae

UNIVERSAL CITY, CA - JUNE 03: Singer Nate Ruess of Fun. performs onstage during the 2012 MTV Movie Awards held at Gibson Amphitheatre on June 3, 2012 in Universal City, California. (Photo by Kevin Winter/Getty Images)

#17 The Wanted - Chasing The Sun

BIRMINGHAM, ENGLAND - JUNE 30: Max George of Chart-topping boy band The Wanted performs at the London 2012 Olympic Torch Relay Special City Celebration at Canon Hill Park Birmingham, presented by Coca-Cola at Cannon Hill Park on June 30, 2012 in Birmingham, England. (Photo by Shirlaine Forrest/Getty Images for Coca-Cola)

#16 Chris Brown - Don't Wake Me Up

LOS ANGELES, CA - JULY 01: Singer Chris Brown onstage during the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California. (Photo by Michael Buckner/Getty Images For BET)

#15 Karmin - Broken Hearted

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)

#14 Cher Lloyd - Want U Back

LONDON, ENGLAND - JULY 08: Cher Lloyd performs at Barclaycard Wireless Festival at Hyde Park on July 8, 2012 in London, England. (Photo by Danny Martindale/Getty Images)

#13 Maroon 5 - Payphone ft. Wiz Khalifa

BALTIMORE, MD - MAY 19: Performing artist Wiz Khalifa (R) sings a song with Maroon 5 lead vocalist and guitarist Adam Levine prior to the 137th running of the Preakness Stakes at Pimlico Race Course on May 19, 2012 in Baltimore, Maryland. (Photo by Patrick Smith/Getty Images)

#12 Flo Rida - Whistle

NEW YORK, NY - JULY 06: Rapper/singer Flo Rida performs on NBC's "Today" at Rockefeller Plaza on July 6, 2012 in New York City. (Photo by Mike Coppola/Getty Images)

#11 David Guetta - Titanium ft. Sia

French DJ David Guetta performs at the Arena in Treptow, Berlin, on July 8, 2012. AFP PHOTO / FREDERIC LAFARGUE (Photo credit should read FREDERIC LAFARGUE/AFP/GettyImages)

#10 Flo Rida - Wild Ones ft. Sia

UNIVERSAL CITY, CA - JULY 22: Rapper Flo Rida performs onstage during the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012 in Universal City, California. (Photo by Kevin Winter/Getty Images)

#9 Carly Rae Jepsen - Call Me Maybe

LAS VEGAS, NV - MAY 20: Singer Carly Rae Jepsen arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

#8 Usher - Scream

LOS ANGELES, CA - JULY 01: Recording Artist Usher performs onstage during the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California. (Photo by Michael Buckner/Getty Images For BET)

#7 Nicki Minaj - Starships

LOS ANGELES, CA - JULY 01: Recording artist Nicki Minaj performs onstage during the 2012 BET Awards at The Shrine Auditorium on July 1, 2012 in Los Angeles, California. (Photo by Michael Buckner/Getty Images For BET)

#6 Calvin Garris - Let's Go ft. Ne-Yo

DOUGLAS, ISLE OF MAN - JUNE 19: Calvin Harris performs at the Isle Of Man Bay Festival on June 19, 2010 in Douglas, Isle Of Man. (Photo by Gareth Cattermole/Getty Images)

#5 Havana Brown - We Run The Night ft. Pitbull

NEWARK, NJ - JULY 18: America's Got Talent Contestant Havana Brown attends an "America's Got Talent" Post Show Red Carpet New at Jersey Performing Arts Center on July 18, 2012 in Newark, New Jersey. (Photo by Michael Loccisano/Getty Images)

#4 Ellie Goulding - Lights

HOLLYWOOD, CA - APRIL 11: Singer Ellie Goulding performs at the Third Annual ELLE Women In Music Event at Avalon on April 11, 2012 in Hollywood, California. (Photo by Michael Buckner/Getty Images)

#3 Gotye - Somebody That I Used To Know

MAITLAND, AUSTRALIA - MAY 07: Wally De Backer of Gotye performs on stage at the Groovin The Moo Festival on May 7, 2011 in Maitland, Australia. (Photo by Mark Metcalfe/Getty Images)

#2 Katy Perry - Wide Awake

LONDON, ENGLAND - JULY 03: Katy Perry attends the European Premiere of 'Katy Perry Part Of Me' at Empire Leicester Square on July 3, 2012 in London, England. (Photo by Ian Gavan/Getty Images)

#1 Rihanna - Where Have You Been

US Singer Rihanna performs during a concert in Oslo on June 29, 2012. AFP PHOTO / SCANPIX NORWAY / Erlend Aas ***NORWAY OUT*** (Photo credit should read AAS, ERLEND/AFP/GettyImages)