SI.comHOT STUFF: Leonardo DiCaprio's girlfriend and current Sports Illustrated swimsuit-issue cover beauty Bar Rafaeli, finishing off a Kobe burger on a brioche bun while sharing cheese fries with some friends at BOA Steakhouse at the Caesars Palace Forum Shops in Las Vegas.
GOOD JEANS: Neil Patrick Harris, Lance Bass, Simon Baker and Jane Lynch, hitting Nobu in West Hollywood for the Levi's cocktail soiree honoring Milk's director Gus Van Sant and writer Dustin Lance Black.
VALENTINE'S DAY SPECIAL: Which young lovebirds (and soon-to-be Oscar performers) celebrated the romance holiday with an afternoon at the beach? And which newly engaged couple did some shopping for something old on the special day?
LOVERS LANE: Zac Efron and Vanessa Hudgens, having a V-Day lunch at Coast restaurant at Shutters on the Beach hotel in Santa Monica. Across town, Mandy Moore bought four skirts and an Adolfo top while shopping with her fiancé, Ryan Adams, at L.A. vintage store What Comes Around Goes Around.
DRINKING GAME: The Hills star Audrina Patridge, doing shots with musician Ryan Cabrera at the Reebok NBA All-Star party for Allen Iverson.
LOVE MATCH: Andre Agassi and Steffi Graff, enjoying dinner at Simon at Palms Place in Las Vegas.
HOOP DREAMS: Al Pacino, Billy Crystal and Gordon Ramsey, catching the Harlem Globetrotters at the Staples Center in downtown L.A.
MONEY TALKS: Randy Jackson, chatting about the economy with Grey's Anatomy creator Shonda Rhimes at the Martell Cognac bar backstage at the NAACP Image Awards in L.A.
FOOTLOOSE: New Dancing With the Stars contestants Denise Richards and David Alan Grier, celebrating the upcoming season at a shindig at One Sunset in L.A.
STOP AND SHOP: Mena Suvari, browsing through West Hollywood's Beckley boutique.
ROYAL TREATMENT: Prince, sipping an apple martini at a balcony table at MyHouse in Hollywood.
TONSIL HOCKEY: Holly Madison, making out with Mindfreak boyfriend Criss Angel while John Legend performed at SoBe Lifewater's Sports Illustrated party at club LAX in Vegas.