Palms Casino ResortBIG FISH: Michael Phelps, getting spray-tanned at Sunset Tan before partying with a bevy of barely dressed beauties at Palms Casino Resort's pool and later at the Moon nightclub in Las Vegas.
GIRL POWER: Gossip Girl stars Kelly Rutherford, Nicole Fiscella and Matthew Settle, helping socialite Tinsley Mortimer celebrate her cameo on the show at a Dior Beauty party at New York's Empire Hotel rooftop.
FLYING NUN: Sally Field, sitting in business class on an American Airlines flight from New York's JFK to LAX in Los Angeles.
HERO'S WELCOME: Hayden Panettiere, introducing Vanessa Hudgens' performance at the Neutrogena Fresh Faces concert on the Third Street Promenade in Santa Monica, California.
TOP MODEL: Lauren Hutton, having lunch at Bar Pitti in NYC.
KILLER BOD: Hostel director Eli Roth, being stretched by a personal trainer after working out at Crunch gym in West Hollywood.
SHOP TALK: Jerry O'Connell, chatting with a "manager type" at the Coffee Shop in NYC's Union Square a few tables from Fringe stars Joshua Jackson and Lance Reddick.
OBSESSION: Emma Roberts, telling Leighton Meester that she is "obsessed" with Gossip Girl at the Kira Plastinina store shopping party in Soho.
FANTASY ISLAND: Ludacris, partying with Hugh Hefner and his Girls Next Door girlfriends at the Playboy Mansion in L.A. during the National Lampoon Great American Fantasy Party.
ROWING TEAM: Entourage's Jeremy Piven, Kevin Connolly, Emmanuelle Chriqui and Carla Gugino, sitting in the first row at Justin Timberlake's BlackBerry Bold-sponsored William Rast fashion show during NYC's Mercedes-Benz Fashion Week.
SMELL YOU: T.R. Knight, picking up Aqua di Parma Colonia travel spray at Bluemercury in Century City, California.
LIVING ROOM: Chace Crawford, hanging out with Butter and 1OAK owners Richie Akiva and Scott Sartiano in the 1OAK Green Room at Condé Nast's Fashion Rocks benefit concert in NYC.
SWAGGIN' SPECIAL: Audrina Patridge, getting a DJ lesson from her sister Casey at the turntables in the Patron Musicinmotiontour.com lounge at the Verizon Wireless Style Villa during MTV's VMA weekend at the Thompson Beverly Hills hotel…90210 stars Jessica Stroup, Shenae Grimes and AnnaLynne McCord, decked out in new Lia Sophia jewelry while snatching up K Swiss Thin Classics and Dermalogica product…Tori Spelling and Dean McDermott, posing with their baby daughter and Mattel board games…Bai Ling, going unnoticed by fellow swaggers as she danced like a crazy lady by the edge of the pool.
That's not all. Click below to hear what was going on backstage at Friday's big Stand Up to Cancer benefit in Hollywood.