Coming in at No. 2 on the Billboard Hot 100 is Katy Perry's "Firework," followed by Bruno Mars's "Grenade" at No. 3, Wiz Khalifa's "Black and Yellow" at No. 4 and P!nk's "F**kin' Perfect" at No. 5.
Rounding out the top tier are Enrique Iglesias' "Tonight (I'm Lovin' You)" featuring Ludacris and DJ Frank E at No. 6, Cee Lo Green's "F**k You (Forget You)" at No. 7, Rihanna's "S&M" at No. 8, Black Eyed Peas's Super Bowl halftime performance that featured the song "The Time (Dirty Bit)" at No. 9 and Britney Spears's "Hold It Against Me" at No. 10.
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