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Tom Cruise, Katie Holmes, Alex Rodriguez, Cameron Diaz

George Pimentel/Getty Images

The A-listers have officially arrived in South Beach for the Super Parties Bowl!

Just last night, Tom Cruise, Katie Holmes, Cameron Diaz and A-Rod all hit CAA's exclusive party at the W.  A source tells E! that Cam "was grinding on A-Rod" at the star-studded soiree.

Carrie Underwood, who sings the national anthem today, was dancing by the deejay booth at the soiree, where Jessica Alba, Kate Walsh, Derek Jeter, Adrian Grenier and Kevin Connolly also hung out.

Other couples headed to Michael Bay's mansion for a charity fete...

At the Transformers director's Big Give, Big Game bash, Gossip Girl couple Ed Westwick and Jessica Szhor mingled with Katie Cassidy, while undercover couple AnnaLynne McCord and Kellan Lutz held hands before heading off to Maxim's party at the Raleigh Hotel.

It was a late night for partiers waiting to see Jennifer Lopez perform at the Axe Louge at Liv. Although J. Lo was supposed to go on at 1, she didn't take the stage until after 2 a.m, rocking the same sparkly bodysuit she wore for her New Years' Eve performance.

In the crowd for her show were Chace Crawford, Jessica Alba & Cash Warren, along with Kristin Cavallari, Audrina Patridge, Stephanie Pratt and Lo Bosworth, who were shooting scenes for The Hills.

But everyone knows it's all about Jersey Shore these days! Yes, The Situation and Pauly D arrived in Miami this morning and are attending today's big game. The Situation is fist-pumping for the Saints, while Pauly D is cheering on the Colts.

And Snookie is also in town with her new boyfriend in tow. We hear the Jersey crew is attending Diddy's after party tonight at the Axe Lounge. Check back for all the details!

See all the stars light up Miami in our Super Bowl Sightings Gallery!