by: US Magazine

Michael Phelps is continuing his dominance out of the water — he’ll host the season premiere of Saturday Night Live on September 13, NBC announced Wednesday.

Rapper Lil Wayne will join the Olympic swimmer — who won eight gold medals in Beijing — as musical guest.

See photos of Michael Phelps’ Greatest Olympic Moments.

Phelps, 23, will also be a guest on The Tonight Show with Jay Leno on Monday.

Last week, Phelps landed a book deal for his memoir, titled Built to Succeed.

"The bullying and adversity made him be stronger and work harder," his mom Debbie told Us Weekly.

"Michael may not have been able to focus in school, but I saw a passion for swimming at such a young age," she said. "He could be at a swim meet or practice for hours. It was a great outlet."