See what costumes Celebs wore for previous Halloweens!

The Duff Sisters love to dress up! Here's Hilary & Haylie Duff dressed up as something...we don't know yet.

And here they are again as Coke-Whore Fairies or something:

Tony Danza tries to look believable as a pirate...

Mariah Carey as a Mermaid!! She'd do anything to show off those big'uns!

Dave Navarro goes as a faggot devil who plucks his eyebrows too much...

And finally, my goddess, Alyssa Milano who makes the perfect fairy!!