#20 Owl City & Carly Rae Jepsen - Good Time

NEW YORK, NY - AUGUST 25: Singer-songwriter Adam Young of Owl City (R) and recording artist Carly Rae Jepsen (L) perform during Arthur Ashe Kids' Day prior to the start of the 2012 U.S. Open at the USTA Billie Jean King National Tennis Center on August 25, 2012 in the Flushing neighborhood, of the Queens borough of New York City. (Photo by Mike Stobe/Getty Images for USTA)

#19 Maroon 5 - One More Night

NEW YORK, NY - JUNE 29: Singer Adam Levine of Maroon 5 performs on NBC's "Today" at Rockefeller Plaza on June 29, 2012 in New York City. (Photo by Michael Loccisano/Getty Images)

#18 Karmin - Hello

LOS ANGELES, CA - AUGUST 07: Singer Amy Heidemann of the musical group Karmin performs at the MDA Show of Strength held at CBS Television City on August 7, 2012 in Los Angeles, California. The show airs on Sunday, September 2, 2012 at 8PM ET/PT, 7PM CT/MT (Photo by Mark Davis/Getty Images)

#17 Trey Songz - 2 Reasons ft. T.I.

ATLANTA, GA - AUGUST 26: Trey Songz attends Heineken Red Star Access Atlanta featuring Trey Songz, Kendrick Lamar and DJ MLK hosted by Affion Crockett at Opera Nightclub on August 26, 2012 in Atlanta, Georgia. (Photo by Moses Robinson/Getty Images for Heineken)

#16 David Guetta - I Can Only Imagine ft. Chris Brown

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)

#15 Cher Lloyd - Want U Back

NEW YORK, NY - AUGUST 30: Singer Cher Loyd performs on NBC's "Today" at Rockefeller Plaza on August 30, 2012 in New York City. (Photo by Michael Loccisano/Getty Images)

#14 P!nk - Blow Me (One Last Kiss)

SANTA MONICA, CA - AUGUST 06: Singer P!nk is announced as the newest face of COVERGIRL Cosmetics at Shutters On The Beach on August 6, 2012 in Santa Monica, California. (Photo by Angela Weiss/Getty Images)

#13 Taylor Swift - We Are Never Ever Getting Back Together

UNIVERSAL CITY, CA - JULY 22: Singer Taylor Swift, winner of Choice Female Artist award, poses in the press room during the 2012 Teen Choice Awards at Gibson Amphitheatre on July 22, 2012 in Universal City, California. (Photo by Jason Merritt/Getty Images)

#12 Calvin Harris - Let's Go ft. Ne-Yo

INDIO, CA - APRIL 15: DJ Calvin Harris performs onstage at the 2012 Coachella Valley Music & Arts Festival held at The Empire Polo Field on April 15, 2012 in Indio, California. (Photo by Mark Davis/Getty Images for Coachella)

#11 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)

#10 Justin Bieber - As Long As You Love Me

UNIVERSAL CITY, CA - JULY 22: Singer Justin Bieber 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 Afrojack & Shermanology - Can't Stop Me

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)

#8 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)

#7 Flo Rida - Whistle

SANTA MONICA, CA - AUGUST 19: Flo Rida performs onstage during the 2012 Do Something Awards at Barker Hangar on August 19, 2012 in Santa Monica, California. (Photo by Kevin Winter/Getty Images for VH1)

#6 Nicki Minaj - Pound The Alarm

NEW YORK, NY - AUGUST 14: Nicki Minaj performs at Pepsi Presents Nicki Minaj's Pink Friday Tour at Roseland on August 14, 2012 in New York City. (Photo by Larry Busacca/Getty Images for Pepsi)

#5 Demi Lovato - Give Your Heart A Break

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

#4 Chris Brown - Don't Wake Me Up

LOS ANGELES, CA - JULY 01: Singer Chris Brown 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)

#3 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)

#2 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)

#1 Rihanna - Where Have You Been

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