Nene Leaks

On Monday's Watch What Happens Live, Glee stars Lea Michele and Chris Colfer spilled some serious Glee gossip to host Andy Cohen: Real Housewives of Atlanta star Nene Leakes will guest-star on the Fox dramedy.

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Leakes will play Roz Washington, McKinley High's new swim coach. "We were snooping on some confidential files and saw that her real name was Linnethia... which I am obsessed with now," Michele said. "She's awesome. She plays the new swim coach, Roz."

And could Roz also be a threat to Jane Lynch's Sue Sylvester? Shortly after Michele and Colfer spilled the beans, Leakes tweeted: "Running through the house screaming Gleeeeee! Coach Roz Washington is gonna get that Sue Sylvester! I'm so proud of myself."

Get more scoop on Leakes' role in the clip below. Glee returns Jan. 17 at 8/7c on Fox.