Jerry Seinfeld is helping out his pals at NBC one more time.

The comic has agreed to be the first guest on Jay Leno's new primetime chat show, a network spokesperson confirmed. He'll appear alongside previously announced musical guests Jay-Z, Kayne West and Rihanna (who'll be performing their single "We Run this Town").

The booking isn't much of a shock, given Leno's longtime friendship with Seinfeld and Seinfeld's longtime relationship with NBC. The comic is currently developing a reality show for the network called "The Marriage Ref."

"The Jay Leno Show" premieres Monday, Sept. 14 at 10 p.m.