Photos: Celebs' Halloween Costumes: The Sexy, The Bizarre, The Nonexistent

Celebrities and questionable costumes go hand in hand for Halloween. At the same Beverly Hills party Friday night where Julianne Hough showed up in ill-advised blackface (which she's since apologized for), other stars opted for costumes so bizarre, we can't even tell it's really them.

We're told that the man cloaked in black from head to toe was Leonardo DiCaprio while movie prankster Sacha Baron Cohen wore both a mask and a fake person as part of his costume, with his wife, Isla Fisher similarly unrecognizable.

Some chose to live out their fantasies of being a rock star, football great or (why not?) Snake Plissken.