Jennifer Lopez
The new song, which features rapper Pitbull, debuts at number nine on the new Billboard Hot 100 countdown. The video accompanying the track will premiere during American Idol's results show on Thursday night (03Mar11).
Meanwhile, Lady Gaga has scored a third week at number one with Born This Way, which has sailed past the one million downloads mark in the past week to become the fifth bestselling digital track of 2011.
Cee Lo Green's Fk You remains at two on the new chart, while Bruno Mars' Grenade, Fkin Perfect by Pink and Rihanna's S&M round out the new top five.
The cast of Glee score three more new entries on the Hot 100, taking their record-breaking tally of chart hits to 120 - 12 more than Elvis Presley.
And fiddler Charlie Daniels lands his first Hot 100 hit since 1982 thanks to his Country Boy collaboration with Aaron Lewis and George Jones.
