HOT GALLERY: Rihanna Gets Sassy Onstage in Miami

Sing it, sister! Rihanna flexed her very impressive vocal cords on Thursday in Miami's South Beach, while performing during the Pepsi Fan Jam Super Bowl Concert. We'll say one thing — she's got great stage presence!

Yesterday afternoon RiRi sported quite a different look for her rehearsal, but still had that same energy onstage!

HOT GALLERY: RIHANNA ISN'T SHY, SAYS HI!

Although we usually love her personal style, last night's one-armed, one-legged catsuit was a little too reminiscent of a Dr. Seuss character for our taste! What do you think?

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