There are two things we know for sure about R. Kelly based on his music: 1) He really loves after-parties. 2) He has a wide array of friends.
While we might expect an R. Kelly collabo to pop up on an Usher or Jay Z album, we didn't exactly see these six duets coming. From Lady Gaga's latest, "Do What U Want," to his 1998 team-up with Celine Dion, we had no idea Kellz' Rolodex was so diverse. Check out his six most random collaborations.