Wilmer Valderrama Revealed the Unexpected 'Friendly Rivalry' He Had With a 'That '70s Show' Co-Star

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. After all, between Kelso defining what a true “himbo” looks and acts like, Valderrama’s unspecified accent made every line truly hilarious.

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And, as it turns out, Kutcher and Valderrama had a feeling their comedic skills were shining through on screen and even developed a “friendly rivalry” with each other because of it.

“He and I soon developed a friendly rivalry to see who could get the biggest laughs from the audience on the first take,” Valderrama wrote in his new memoir , An American Story: Everyone’s Invited , per Us Weekly .

“If you mess up on the first take and try for a huge laugh on the second, the joke never lands as powerfully,” Valderrama explained of their one-take rule. “If you need to do a third or fourth take, you might as well forget it.”

But despite their on-set competition, Valderrama assured he has nothing but love for his former co-star. “Ashton was far more intelligent in real life than the character he played, and he was far more serious about the craft of acting than it appeared,” the actor said, adding that Kutcher “always came to set extremely prepared, just like I did.”

In his memoir, Valderrama talks about much more than his on-set friendships and gets candid about his experience immigrating from Venezuela to California when he was in middle school.

'An American Story: Everyone’s Invited' by Wilmer Valderrama

“A lot of what this memoir was really about was to humanize the immigrant experience,” the actor told The Hollywood Reporter . “I think that every time there is some kind of election, there is a paraphrasing of our culture. And I thought it was really important to just say, ‘Hey — this is what immigrants really look like.'”

“Immigrants are police. Our attorneys, our nurses, our doctors, our essential workers. They have such an essential and vital contribution to this country,” he explained. “It’s important that as we go into these conversations, and as they become hot topics in the news, that we don’t forget the humanity. We call ourselves ‘the 200 percent’ — because we’re 100 percent American and 100 percent Latino, too. The potential of this moment is to really come together.”

Valderrama’s memoir is available today!

Before you go, click here to see celebrity co-stars who allegedly hated each other in real life.