John Stamos a Broadway Bye Bye Birdie

John Stamos is back on the Great White Way.

Stamos joked to Extra about his nickname on the Broadway stage: “That’s what they call me around here. John Stay-moist.”

Stamos was backstage at his new Broadway show “Bye, Bye Birdie” where the 46-year-old actor talked about getting in shape for his new role and the funny nickname given to him by his cast mates.

John Stamos is no stranger to Broadway and what it takes to perform on stage every night as he’s been in productions of “Cabaret” and “Nine.”

Despite his overall good shape, John decided to intensify his workouts over the past few months to get ready for his new role.  “I’ve just been doing a lot of cardio just to build up that. But I sweat so much. These poor girls I’m sweating on.”

Since his new work regime has caused a bit of a sweating issue, his cast mates decided to poke some fun at him by buying him a special gift for his birthday and giving him a new nickname: ‘It was my birthday last week. They got me a sweatband so I wouldn’t sweat on them.”

“Stay-moist. That’s what they call me around here. John Stay-moist.”

“Bye Bye Birdie” runs from October 15, 2009 to January 10, 2010 at Henry Miller’s Theatre in NYC.

“Extra’s” interview with John Stamos airs tonight.