Jennifer Lopez's Busy Pre-Super Bowl Saturday Night

Singer is pulling double duty at two Super Bowl celebrations. Plus, find out which other stars will be partying in South Beach!

Jennifer Lopez will be one busy woman when Saturday night rolls around in South Beach.

Not only is the hot mama scheduled to attend Michael Bay's Giving Back soiree at his Miami mansion that night, but she's performing later at the Axe Lounge at LIV at midnight!

And those aren't the only parties planned for Saturday...

Kendra Wilkinson and Kellan Lutz are slated to attend Maxim's annual bash at the Raleigh, while the Black Eyed Peas will celebrate after their concert at the Sagamore for Playboy's Super Saturday Night party.

So many soirees, so little time! Here's a breakdown of other bashes:

• Playboy Golf VIP Players bash kicks off at the Sagamore Hotel, where LeAnn Rimes and Eddie Cibrian are expected.
• Pepsi's Fan Jam concert, where Rihanna and Justin Bieber will perform.
• Venus Williams will host a launch party for Tide and Febreze Freshness Sport. The tennis great will be joined by Pete Wentz on the turntables, Kellan Lutz and Katie Cassidy poolside at the W hotel. Hope Kellan's shirtless!
• Kim Kardashian, Holly Madison and Roselyn Sanchez host the annual Leather and Laces bash at the Paris Theater on the same night E!'s Kendra Wilkinson throws a party at Passion Nightclub in the Hard Rock Hotel.
• Audi is hosting a posh penthouse dinner party at the W, where Jessica Alba and Kate Walsh will eat in style.
• Rihanna hosts the Pepsi Refresh Project launch party with Benji and Joel Madden at the Fontainebleau, where her new man, Matt Kemp, is also expected that night for ESPN's Next party.
• The Saints and Colts won't be the only people taking the field...Taylor Lautner and Chace Crawford are playing in DirecTV's fourth annual Celebrity Beach Bowl!
• And finally, after the big game Sunday, Diddy and Erin Andrews host an afterparty at the Axe Lounge at LIV.