Now that's an elaborate Halloween costume!

On Friday's Martha Stewart Show, the daytime diva dressed as Medusa, while Gossip Girl star Blake Lively posed as Cleopatra. It's a little scary, but cool ...

Gossip Girl star Blake Lively can pull off any look... Cleopatra included.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.