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We all know that Christian Audigier knows how to throw a party!

The designer slash entrepreneur's fashion trade show, "When I Move You Move," has been going on in Las Vegas at Caesars Palace the past couple days, and we've seen Dave Stewart, T.I., Macy Gray and Bobby Brown in attendance... not to mention Tara Reid and Nicky Hilton showing off their clothing lines!

Heck, even Mariah Carey's hubby Nick Cannon was DJing at Pure at Caesars last night - talk about the place to be!