performs onstage at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California.
#9 Nicki Minaj - Starships
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)
#8 Rihanna Featuring Calvin Harris - We Found Love
CHELMSFORD, ENGLAND - AUGUST 21: Rihanna performs live on the V stage during day 2 of the V Festival in Hylands Park on August 21, 2011 in Chelmsford, United Kingdom. (Photo by Ian Gavan/Getty Images)
#7 Adele - Someone Like You
onstage during 2009 VH1 Divas at Brooklyn Academy of Music on September 17, 2009 in New York City.
#6 fun. Featuring Janelle Monae - We Are Young
attends the amfAR New York Gala To Kick Off Fall 2012 Fashion Week at Cipriani Wall Street on February 8, 2012 in New York City.
#5 Adele - Rolling In The Deep
<> at Palais am Funkturm on March 24, 2011 in Berlin, Germany.
#4 Kelly Clarkson - Stronger
<> at Radio City Music Hall on January 21, 2012 in New York City.
#3 Whitney Houston - I Will Always Love You
LAS VEGAS - MAY 22: performs at the VH1 Divas Duets, a concert to benefit the VH1 Save the Music Foundation held at the MGM Grand Garden Arena on May 22nd, 2003 in Las Vegas, Nevada. (Photo by Frank Micelotta/Getty Images)
#2 Adele - Set Fire To The Rain
arrives at the 2011 MTV Video Music Awards at Nokia Theatre L.A. LIVE on August 28, 2011 in Los Angeles, California.
#1 Katy Perry - Part Of Me
Singer Katy Perry arrives at the American Music Awards, in Los Angeles, California, on November 20, 2011. AFP PHOTO/VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)