His hairstyle was an ode to his real-life father, pro wrestler Rocky Johnson.

Long’s character continued the running joke that no one knows exactly where Fez is from.

Alice Cooper

The setting: Eric Forman’s dream.

Dwayne Johnson, season 1 episode 15

Michael Yarish/FOX

The characters: Hot Donna and Alice Cooper.

The prop: A very real snake.

Erika Christensen

Remember Pricemart, the fictional 70s-era knockoff of Target?

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Michael Yarish/FOX

You get… not nearly enough brain cells.

Rachel Bilson

Move over, Seth Cohen.

Rachel Bilson was onThat ’70s Show, and she was just as enamored with one Wilmer Valderrama.

Melissa Joan Hart, season 2 episode 9

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Jenna Fischer

TheOfficestar played Stacy Wanamaker, a former schoolmate of the gang.

And yes, they had an offensively sexist nickname for her.

The resulting episode perfectly encapsulates 2004.

Amy Adams, season 2 episode 15

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Alice Cooper, season 3 episode 14

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Dylan & Cole Sprouse, season 4 episode 2

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Erika Christensen,season 4 episode 10

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Jessica Simpson, season 5 episode 1

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Rachel Bilson, season 6 episode 21

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Alyson Hannigan, season 6 episode 12

Jenna Fischer, season 7 episode 12

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Lindsay Lohan, season 7 episode 7

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Bruce Willis, season 8 episode 4

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Mary Tyler Moore, season 8 episode 10

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