Trick or treat.  Yup, Halloween is only twenty four days away.  Not sure what to dress the kids up as this Halloween?  Or yourself? 

Zombies, Harry Potter, Batman, Charlie Sheen.  See who's going to be knocking on your door this Halloween.  These are some of the most popular costumes this year, according to bthesite.com, squidoo.com and Party City.

For kids:

Mattel's Monster High characters

Justin Bieber

Miley Cyrus

Superheroes, like Captain America, Batman, Superman, Ironman, the Green Latern and Transformers

Harry Potter characters

Video Game characters, like Super Mario

Smurfs

All Princess characters, like Cinderella

Star Wars

Twilight

Pirates

Most popular costumes for adults:

Zombies

Mad Men characters

Morph Suits

The Black Swan

Charlie Sheen, Arnold Schwarzenegger and Anthony Weiner

Jersey Shore

Katy Perry

Amy Winehouse

Glee characters

Lady Gaga

Star Wars characters

Avatar characters

Classic cartoon and video game icons from the 1980's and 1990's

What are you going to dress up as?