She's not officially divorced, but Jennifer Lopez is living the single life -- hitting up a raging Hollywood nightclub last night with her new boy toy Casper Smart ... TMZ has learned.
The couple stopped by Boulevard 3 -- and sources tell us, J.Lo and Smart partied all night in a private area of the club ... dancing with each other and being very affectionate.
We ran into Smart on his way out -- but he was tight-lipped.
J.Lo & BF
Clubbing It in Hollywood
12/11/2011 6:30 AM PST BY TMZ STAFF
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