Pitt bids farewell to the Venice Film Festival with his sons Pax, 4, and Maddox, 7, in tow. Plus: J. Lo, Kate Hudson and more

BIRTHDAY SUIT?

Michael Jackson (who will turn 50 on Friday) gets a jump on the festivities in Las Vegas, stopping at Planet Hollywood Resort and Casino in a tuxedo jacket – and pajama bottoms! During his Sin City trip, the king of pop also took his children to see Cirque du Soleil's KÀ.

Think you know all about Jackson? Test yourself on his most outrageous moments in our quiz!