The Bajan songstress was dressed in a white leather bustier with nearly-thigh high boots, and was joined by Britney toward the end of the steamy performance. The Southern Belle, who lends her vocals to the revamped song, wore an equally naughty outfit, a black vinyl bunny gear.
Next after the steamy duet, "The Hangover" actor Ken Jeong took the stage for a musical number dedicated to the Sin City. The host shared the spotlight with Nicki Minaj and Pat Monahan of Train. Ken played piano and sang a Coldplay song "Clocks?", while Minaj was squirming on top the piano.
The other artists scheduled to rock the MGM stage include Cee-Lo Green, Pitbull, Black Eyed Peas, Keith Urban, Lady Antebellum, Taio Cruz, Ne-Yo, Far East Movement and OneRepublic.
Rihanna and Britney:
Ken Jeong and Nicki Minaj: