The thing about Carly Rae Jepsen is, she doesn't exactly have a signature look or style that would make her obvious as a Halloween costume. That said, the Canadian singer does have a signature tune - her "Call Me Maybe" is the biggest single of the year - and where there's a pop-cultural craze, a ubiquitous Halloween trend is never far behind. So what will the costume entail? Just think "music video" - with nearly 300 million hits on YouTube as of this writing, the "Maybe" clip will serve as the most obvious reference point. The question is: will there be more "car wash" Carlys or "garage concert" Carlys or "staring amorously through the window in a blue polka-dotted top" Carlys? There's no telling, but one thing's for sure - all will require some serious bangs.

- Chris Eggertsen