Super Bowling with the Stars: J.T. and Scarlett's Miami Hookup?

Talk about Miami heat! Justin Timberlake and Scarlett Johansson reportedly had a secret late-night rendezvous in Miami over Super Bowl weekend.

In Touch magazine says the two not only were spotted coming and going from the Delano hotel together, they also did some dirty dancing at a private postgame party at Mokai. Their reps will not confirm or deny the alleged hookup. Timberlake's rep says he has "no idea" if the reports are true. Johansson's rep tells me, "Don't comment on client's personal lives but thanks for asking."

Then there was Tom Cruise and Katie Holmes checking out Jennifer Lopez and Marc Anthony's Ocean Drive-hosted concert. John Travolta was also in town, as were Ashton Kutcher and Demi Moore.

Tennis champ Andy Roddick was spotted at Shaquille O'Neal's Super 60 party at radio station 790 The Ticket's Boost Mobile Villa at the W Hotel with a mystery blonde. I'm told Roddick flew her to Miami himself.

Gisele Bündchen's maybe-boyfriend Tom Brady was also at the Shaq bash, where he was on good behavior. "Two hot brunettes were making out with each other trying to get Tom's attention," a fellow partygoer reports. "It didn't work. He walked away."

Also making out were Nick Lachey and his girlfriend, ET/MTV host Vanessa Minnillo, on the hotel's roof deck.

Ludacris and bud Larenz Tate almost didn't make it to legendary sports agent Leigh Steinberg's annual Super Bowl bash. Their driver got lost on the way from Miami to the bash, which took place about 20 miles away aboard the Grand Floridian yacht in Hollywood. When they finally made it, the first thing out of Ludacris' mouth was, "Where's the food?"

Steinberg, who was the model for Tom Cruise's character in Jerry Maguire, went green this year. He teamed up with Climate Clean to offset the party's carbon emissions. The green carpet was recycled after the event, and there was a ban on plastic and paper tableware. Even the table centerpieces were planted postbash.

Over at On 3 Productions' official Super Bowl XLI gift lounge at the Radisson, Bears quarterback Rex Grossman showed a softer side when he picked up a Vera Bradley pet carrier for his Chihuahua, named Lola.

Fergie walked away with Varsity briefs from 2(x)ist underwear for her boyfriend, Las Vegas hunk Josh Duhamel. Tom Brady commented that he thought the chiseled model on the 2(x)ist box looked like himself. No word on whether he stripped to prove it.

Cadillac gave away two-week loans of any of their cars while measuring men like Chris Isaak and LL Cool J for custommade, Cuban-inspired Guayabera shirts.

And apparently during all this fun there was some kind of game played on Sunday.