Brad Pitt and Angelina Jolie were one sexy duo at the LA premiere of The Tree of Life tonight. Brad showed off his clean shaven face and accentuated his tan with an unbuttoned shirt while Angelina looked gorgeous in a one-shoulder Jenny Packham gown. It was the couple's second red carpet this week after stepping out together for Angelina's Kung Fu Panda 2 event on Sunday. Their four oldest kids joined them for the screening of Angelina's animated feature, but it looks like this evening's outing was adults only. Brad and Angelina have been making the rounds for both of their films since kicking off press in Cannes earlier this month. Angelina's costar, Jack Black, took care of promotions solo with an appearance in NYC today, so that Angelina could stay on the West Coast to support her man's project, which picked up the top prize at the Cannes Film Festival.