There really are only about 2 weeks left to nail down your perfect Halloween costume. Have you decided what you are going to be? Well if you haven't, here are a few of the top trending adult costumes for 2011. According to Yahoo.com, Halloween costume searches range from traditional to pop cultural. With that said, here are the most popular costumes listed by category. Here are the top controverial costumes that make the list for most popular. 

• Casey Anthony. Really? I don't think someone could pay me to imitate her for a day.

• Charlie Sheen. I guess Americans just can't get enough of this crazed celebrity.

• Osama Bin Laden. Ugh.

• Chaz Bono. I guess this could be okay, but it wouldn't make my list of even 100 top costumes but hey, I am here to tell you what is popular among the American population, not me personally.

• Lady Gaga. This could potentially be fun if you are ready to invest in some crazy attire that you may never wear again. 

  As for traditional costumes, here is what's making the list. For Women:

•  Wonder Woman
•  Sexy Peacock
•  The classic vampire costume
•  Alice in Wonderland
•  Cat women

  For Men:

• Sexy Male Cop
• Joker
• Superhero
• Justin Bieber
• Han Solo, Starwars Character

 And here are a few funny pictures to accompany the costumes I listed above. Image Courtesy of Sami Howzit on Flickr  Mr. Charlie Sheen can be purchased here...incase you are interested.   Image courtesy of lalate.com   You can find this Sexy Peacock costume for yourself here.   Lady Gaga costume image courtesy of highfashionstyle  Justin Bieber costume image courtesy of thepartyanimalblog.