Showcase - Celebrities in Halloween Costumes...?

Jane Lynch as her Wreck-It-Ralph character, Sgt Calhoun

Today is actual Halloween in the US and everyone's in on it, even celebrities. Naturally.

Here are some of the best celebrities in Halloween gear

Kim Karshidan as Catwoman

Avril Lavigne as a naughty sailor

THE ROCK AS THE HULK! HULK SMASH!!

Katy Perry and Shannon Woodward as Jane Lane and Daria

Neil Patrick Harris and partner do Wizard of Oz with their kids!

Gisele Bundchen as Cleopetra

Heidi Klum in something Eygptian

Nathan Fillion as Captain Canada!

Ellen Degeneres as Sofia Vergara!

That's Calista Flockheart and Harrison Ford as nerds. BELIEVE IT.

Chloe Moretz goes goth!

Seth Green and Claire Grant do Joker and Harley