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� Zac Efron started his week off with a guys' night out at Skybar's Champagne and Caviar party at the Mondrian Hotel in L.A. The single actor and three friends arrived around midnight, and hung out in a corner VIP booth. And he wasn't having a wild night: Efron just chilled out and relaxed, keeping to his circle of friends.
� Apparently Kellan Lutz had a similar idea: the Twilight star, who has been in Vancouver filming Breaking Dawn, had his own boys-only night at Katsuya Brentwood, where the actor and his friends gorged on rock shrimp tempura and sake.
� Miami Heat star LeBron James stopped by the Burger & Beer Joint in Miami's Brickell neighborhood for lunch, and he kept it on the lighter side. The NBA star ordered a turkey burger during his meal with friends. "They all seemed to be in good spirits," a source tells us, "laughing and joking throughout their meal."
� By JENNIFER GARCIA, LINDA MARX and PETER MIKELBANK
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