
Madison's revealing celebration went down at O'Sheas Casino in Las Vegas.
Holly Madison is not a Playboy Playmate.
She f'ed Hugh Hefner (or purported to) and appeared in the magazine a few times. But is not a Playmate.
everybody is so entranced in her cleavage that you MISSED THAT SHE IS WEARING A PENTHOUSE KEY!
IS THIS WHAT HAPPENS WHEN HEF LOCKS YOU OUT OF THE MANSION?
Britney Spears might miss a lot more 'X Factor' auditions ... because she can! Simon Cowell gave Brit damn near free reign in order to sign the pop star to that $15 million deal -- but is it backfiring? We'll tell you what peeps on the set are saying.Plus, Chris Jericho's…