Caught in the Act!

Caught in the Act!
Richard Young/Startraks

01/01/2008 AT 06:00 AM EST

Mary-Kate and Ashley Olsen, sitting at a reserved table, sipping drinks and chatting with friends at happening Hollywood nightspot Goa. While the sisters – in head-to-toe black – seemed subdued, the Olsens (and members of their entourage) perked up at the sound of the Cranberries' hit "Dreams." Leaving their corner, the group hit the dancefloor as deejay Samantha Ronson spun the '90s alt-rock hit, a fellow clubgoer reports.

Gabrielle Union, loading up on jeans – boot cut jeans, to be exact – at Paige, a Los Angles boutique. The Perfect Holiday star also picked up some babydoll tops – and walked out with some reading material, the book Your Perfect Fit, written by the brand's designer.

Tommy Lee, jumping on a table and dancing with a cocktail waitress inside the opening of CatHouse, the new nightspot at Las Vegas's Luxor Resort & Casino.

Caught in the Act!| Caught in the Act, Ashley Olsen, Mary-Kate Olsen, Musician Class

Gary He / AP

John Legend, celebrating his 29th birthday in style with a bash at the Plumm in New York. Inside, the silky-voiced crooner sipped champagne with his guests while partygoers were treated to old-school hits like Prince's "Kiss" and Michael Jackson's "Billy Jean." Before leaving, the man of the hour grabbed the mic and announced, "It's my birthday!" Then, he sang a chorus of his hit "Ordinary People" – a capella – before thanking the crowd (which included Macy Gray) for coming.


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