CELEB GPS: Orlando Bloom out with Baby Boy, Justin Bieber Kicks Back-up Dancer

While Justin Bieber was singing "Baby baby baby" at his show, Orlando Bloom and his wife Miranda Kerr stepped out with their baby son.

Orlando carried his son Flynn, born January 6, through LAX airport with Miranda not too far behind them.

Next up, Justin Bieber kicked off his world tour by kicking one of his back-up dancers. No one seemed to be harmed, but the teen heartthrob did look to have cut his hair even shorter.

In New York, mommy-to-be Jessica Alba chowed down while catching a Knicks game with her husband Cash Warren. Also spotted out this weekend, Zac Efron at LAX airport and "True Blood" couple Anna Paquin and Stephen Moyer at the 2011 PaleyFest.

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