Guest judges on the upcoming sixth season of RuPaul's Drag Race include Adam Lambert, Khloe Kardashian and Neil Patrick Harris.

RuPaul, America's first superstar drag queen, returns next month to pit 14 drag queens against each other in a contest to win $100,000 cash and the coveted title of “America's next drag superstar.”

“Our sixth season is rated 'BBB.' Bitches Better Beware!” said RuPaul, the show's executive producer and host. “It's our most outrageous and sickening cast to date. And quite frankly, I'm scared of these queens.”

Also slated to appear this season are David Burtka, Leah Remini, Paula Abdul, Lena Headey, Eve, Jaime Pressly and Chaz Bono.

RuPaul's Drag Race season 6 premieres Monday, February 24 on cabler Logo.