Boo!
We're used to seeing this celebrity in skimpy outfits, but when she hit Las Vegas for Labor Day weekend, she made a surprise appearance at a concert dressed as a ghost.
So which starlet is spooking up the stage nearly two months before Halloween?
It's Paris Hilton and her spectral getup was all part of the Deadmau5 show (an electro DJ, in case you didn't know) at The Chelsea inside the Cosmopolitan Resort.
Paris was handpicked to play the apparition, which always appears during the song "Ghosts N Stuff." The audience had no idea who the phantasm was until Paris revealed herself.
"Was so much fun and such an honor to be asked to go on stage and be his Ghost in the show tonight. Love DeadMau5!! So epic! Amazing night!" she tweeted.
Joining Paris on her Sin City jaunt was sister Nicky. The girls had dinner at Lavo on Saturday where they shared tuna tartare and kobe meatballs before heading to Tao Beach where LMFAO member Redfoo was celebrating his birthday.