Spencer Pratt: 'I AM the World's Biggest Poser'

5/21/2009 6:40 PM PDT BY TMZ STAFF
Hey, at least now he's admitting it.

Spencer Pratt: Click to watch
Spencer Pratt was out at Chinois with MMA fighter Kevin Casey -- the dude whose music video Pratt singlehandedly emasculated -- where he proved, once and for all, that he's a bigger poser than Avril Lavigne.