Jack Osbourne partied like a rock star's son for two straight nights at PURE nightclub at Caesars Palace in Vegas.
Arriving around midnight on Saturday, the no longer big O posed for photos with fans and the Pussycat Dolls -- the Vegas burlesque branch, not the "singing" group! Jack then retreated to the club's VIP area with "American Idol" wannabeen Justin Guarini.
Jack Osbourne Keeps It PURE
4/30/2007 3:18 PM PDT BY TMZ STAFF
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