Wilmer Valderrama shirtless in That '70s Show 8-20 "Leaving Home Ain't Easy"

Danny Masterson, Gavin MacLeod and Steve Landesberg shirtless in That '70s Show 8-19 "Sheer Heart Attack"

Wilmer Valderrama in That '70s Show 8-13 "Spread Your Wings"

Danny Masterson, Kurtwood Smith and Dick Van Patten shirtless in That '70s Show 8-10 "Sweet Lady"

Wilmer Valderrama shirtless in That '70s Show 8-08 "Good Company"

Ashton Kutcher in That '70s Show 8-01 "Bohemian Rhapsody"

Ashton Kutcher shirtless in That '70s Show 7-25 "Till the Next Goodbye"

Topher Grace in That '70s Show 7-24 "Short and Curlies"

Wilmer Valderrama shirtless in That '70s Show 7-19 "Who's Been Sleeping Here?"

Ashton Kutcher shirtless in That '70s Show 7-10 "Surprise, Surprise"

Topher Grace shirtless in That '70s Show 7-02 "Let's Spend the Night Together"

That '70s Show 6-23 "My Wife"

Don Stark shirtless in That '70s Show 6-20 "Squeeze Box"

Ashton Kutcher and Don Stark shirtless in That '70s Show 6-16 "Man With Money"

Don Stark shirtless in That '70s Show 6-15 "Who Are You"

Wilmer Valderrama shirtless in That '70s Show 6-05 "I'm Free"

Ashton Kutcher shirtless in That '70s Show 6-02 "Join Together"

Topher Grace shirtless in That '70s Show 6-01 "The Kids Are Alright"

Topher Grace, Wilmer Valderrama and Ashton Kutcher shirtless in That '70s Show 5-25 "Celebration Day"

Ashton Kutcher shirtless in That '70s Show 5-22 "You Shook Me"