Even Your Favorite Celebrities Dress As Other Celebrities For Halloween (Photos)

Halloween is really the only acceptable day to dress as your favorite celebrity.

If you dress up like Katy Perry, Taylor Swift, Lil' Kim or Michael Jackson on any of the other 364 days in the year, odds are, you're a little weird.

But, hey, even celebrities relish in the spirit of the holiday to dress as their favorite celebrities.

Check out a few of the best celebrities dressed as other celebrities below. It's the celebrity Halloween inception!

Miley Cyrus as Lil' Kim

Carmen Electra as Katy Perry

 Kim Kardashian as Anna Wintour

Kaley Cuoco and Ryan Sweeting as Justin Bieber and Selena Gomez

 Kelly Ripa as Taylor Swift

Kelly Osbourne as Christina Hendricks

Paris Hilton as Miley Cyrus

Beyoncé and Blue Ivy as Michael and Janet Jackson

Diddy as Prince

Lance Bass as ... Lance Bass