She gave birth only three months ago -- but dirrty girl Christina Aguilera already is back on the club scene, hitting up Villa with hubby Jordan Bratman.
Also in L.A.: Bobby Brown took flight with his girlfriend, Lindsay Lohan held tightly onto her water, Rihanna explained her new tat and Arnold sucked on a stogie.
In NY: Ashton and Demi partied after his SNL gig with Cameron Diaz, Lucy Liu, Diddy, "Idol" loser Michael Johns and a poop-dodging Blake Lively.
X-Tina: Baby Poppin' to Club Hoppin'
4/14/2008 6:46 PM PDT BY TMZ STAFF
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