On Tuesday, Sept. 17, the NCIS actor, 44, released his memoir, An American Story: Everyone’s Invited. In the book, Valderrama, who played Fez, opened up about auditioning for the sitcom, and what it was like working with Kutcher, 46, once he landed the role, per Us Weekly .

It’s been over 18 years since That ‘70s Show ended, but it's till one of the most rewatchable series and is easily accessible via streaming. The Fox sitcom produced many eventual stars, like Ashton Kutcher,

If you’ve seen even one episode of That ’70s Show, which ran from 1998 to 2006, then you know that Ashton Kutcher‘s character Kelso and Wilmer Valderrama‘s character Fez are what made the show TV gold.

Wilmer Valderrama discusses his experiences on That '70s Show with Ashton Kutcher in his memoir, An American Story: Everyone’s Invited. He reveals the

The characters Kelso and Fez, played by Ashton Kutcher and Wilmer Valderrama in the TV show That '70s Show from 1998 to 2006, were pivotal to the show's success. Their comedic skills led to a "friendly rivalry" between the actors,