On Saturday, March 7, in LA: Zac Efron and Vanessa Hudgens getting cozy at Patrick's Road House in Malibu… Amy Poehler gushing over baby twins at Hugo's in West Hollywood… Jason Lee with his son, Pilot Inspektor, buying videogames at Best Buy in West Hollywood… "Dancing With The Stars" contestant Gilles Marini enjoying an iced coffee and oatmeal in Starbucks in West Hollywood.
And in Puerto Rico: Disney cutie Selena Gomez shopping for spring essentials.
VIEW THE PHOTOS: Week's Best Star Sightings, March 7 - 13, 2009
On Sunday, March 8, in LA: "W." star Jesse Bradford bicycling with two friends near the Grove… Lady Gaga surprising the crowd at gay hotspot Here Lounge, stepping into the booth with DJ Adrian Taylor and singing a few lines a cappella to the crowd's delight.
And in NYC: Vincent D'Onofrio out for a walk with his two sons in Gramercy.
VIEW THE PHOTOS: The Latest Star Sightings
On Monday, March 9, in Las Vegas: Adam Levine from Maroon 5 and a couple of his band mates having lunch at Simon at Palms Place. Adam enjoyed the Wok Edamame, Albacore Sashimi, Simon Jalapeno Yellowtail and the signature Simon Junk Food Platter.
On Tuesday, March 10, in LA: "Heroes" star Ali Larter hitting the gym at Barry's Bootcamp in West Hollywood.
And in NYC: "The City" star Whitney Port celebrating her birthday party at Tenjune's weekly "I Hate Models" party… "Without a Trace" star Roselyn Sanchez announcing her forthcoming on-screen wedding at Absolut Mango's launch event.
VIEW THE PHOTOS: Hollywood's Hottest Couples!
On Wednesday, March 11, in NYC: Robin Thicke spending his 32nd birthday at 1OAK.
And in LA: Lauren Conrad, Lady Gaga, Jewel and husband Ty Murray and Nicky Hilton making the scene at Apple Lounge for Star magazine's Young Hollywood Celebration issue… Vanessa Hudgens stocking up on plastic bins at Target in Burbank.
On Thursday, March 12, in LA: Justin Timberlake and girlfriend Jessica Biel getting desert at Al Gelato in Beverly Hills with friends… Minnie Driver walking her dog, Bubba, with son Henry at the Lake Hollywood Dog Park… Hillary Swank going for a run on Franklin Avenue.
On Friday, March 13, in LA: Chris Brown in a hooded sweatshirt at LA Fitness in Universal City, accompanied by a large bodyguard.
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