Seen on the Scene: Seen on the Scene

WSVN -- They've been downplaying their relationship for months, but my sources tell me that P. Diddy and Sienna Miller are finally about to admit they are actually dating. Diddy is reportedly quite excited to bring Sienna to his Star Island digs here in Miami. He hopes to entertain her with decadent dinner parties and a few Neiman Marcus shopping binges.

Jennifer Lopez and Marc Anthony may be in the studio rehearsing for their upcoming tour, but everybody's wondering if J-Lo may have already done some work out of the studio. Insiders and friends of the star have been commenting that Lopez is bursting out of her plunging designer clothes, prompting plastic surgery rumors that she upgraded to a fuller figure.

Now for some more star sightings around town.

Rosie O'Donnell enjoying the view of Miami out on a pal's yacht.

Sweating from a workout, Janet Jackson dashing to the design district for yet another meeting to pick out furniture for her new Miami house.

Cisco Adler of Whitestarr and his band spotted at Spa V at hotel Victor enjoying the spa's renowned Hammam V, the co-ed, clothing-optional steam bath.

Cisco and crew were joined by Miami's pop diva, Brooke Hogan.

From downplays to upgrades and all the gossip in between, I am In Touch Weekly's Michael Cohen for Seen on the Scene.