No surprise here that RIHANNA was CelebBuzz.com's most revealing star on Twitter. The girl never has clothes on. LOL.

In order, here's 2-5!

#2 is your favorite boy turning man Justin Bieber! Remember the butt shot?

#3 goes to Courtney Love for no other than than this pic that was "accidentally" tweeted out with her NOT wearing any clothes.

#4 and a blast from the past, Paris Hilton!

Honestly, I didn't know she still had "followers".

#5 on the list goes to our favorite...never mind. I doubt he's anyone's favorite anything.

Mike "The Situation" from MTV's Jersey Shore.