PHOTO GALLERY: Celebs Best and Worst Halloween Roundup 2009

As usual, celebs went all out for this year’s Halloween festivities.

Bacon and eggs! Skeletons! Dora The Explorer! Lady GaGa! The list goes on!

Click through our mega-gallery of stars like AnnaLynne McCord, Jessica Alba, Kelly Osbourne, and many more to see who dressed as what. Which outfit was your fave? Don’t forget to tell us in the comment section!