(EXCLUSIVE COVERAGE) attends "The Celebrity Apprentice" Season Premiere viewing party hosted by John Rich at Mount Richmore on March 6, 2011 in Nashville, Tennessee.
#9 Good Life - OneRepublic
onstage during the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.
#8 How To Love - Lil Wayne
onstage during the BET Awards '11 held at the Shrine Auditorium on June 26, 2011 in Los Angeles, California.
#7 E.T. - Katy Perry Featuring Kanye West
onstage during the 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California.
#6 The Edge Of Glory - Lady Gaga
CARLISLE, ENGLAND - MAY 15: (UK TABLOID NEWSPAPERS OUT) performs at Radio 1's Big Weekend 2011 at Carlisle Airport on May 15, 2011 in Carlisle, England. (Photo by Dave Hogan/Getty Images)
#5 Super Bass - Nicki Minaj
LAS VEGAS, NV - MAY 22: Singer Nicki Minaj (C) performs during the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images for ABC)
#4 Last Friday Night (T.G.I.F.) - Katy Perry
arrives on the red carpet ahead of the 2011 Logie Awards at Crown Palladium on May 1, 2011 in Melbourne, Australia.
#3 Rolling In The Deep - Adele
<> at Palais am Funkturm on March 24, 2011 in Berlin, Germany.
#2 Give Me Everything - Pitbull Featuring Ne-Yo, Afrojack & Nayer
poses in the press room during the 2010 American Music Awards held at Nokia Theatre L.A. Live on November 21, 2010 in Los Angeles, California.
#1 Party Rock Anthem - LMFAO Featuring Lauren Bennett & GoonRock
<> at fuse Studios on April 28, 2011 in New York City.