Before Tyler Perry was a world-famous producer and actor, the closest he got to fame was serving celebrities as a hotel employee.

"I met Oprah. I met Whitney Houston. I met Patti LaBelle. I met all those people before I was famous," Perry tells TVGuide.com.

"Some of them were really, nice and one or two weren't... And I reminded one of them recently of the story and how they treated me, and she was devastated," Perry recalls.

So, which iconic diva mistreated Tyler Perry before he was famous? We have our bets, but what's yours?

See what else Perry says in the video above.