I know this is really weird, but I'm serious...

Um... My mom is looking for a song. I've looked everywhere for it!!! Some rap fãs may know... I'm no rap fan, so I would never find it... She said the only lyrics she knows is "Big booty Judy, drop it to the floor" -_-......... It's not por Chris Brown or Ying Yang Twins... My mom's looking for it because she thought it would be funny to tease my sister with... Eh.... Well... Please try to take this seriously.... :/