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Kobe Bryant, Zac Efron

Lakers fan Zac Efron smiled big as he hung out with one of the team's stars, Kobe Bryant, at the Hublot soiree introducing Bryant as the watchmaker's ambassador on Wednesday in L.A. Efron was undoubtedly happy to hear that Bryant was expected to be back on the court Friday after being sidelined for two games because of a sprained ankle and the flu. (3/20/2013)

Best Celebrity Pics of the Week: March 18, 2013

Miss any of the most memorable celebrity moments of the week so far? Check out omg!'s Top Shots!