Updated

Here's the story ... of a Brady Bunch reunion!

Three of the original Brady cast members -- Barry Williams (Greg), Christopher Knight (Peter) and Susan Olsen (Cindy) — returned to Kings Island in Mason, Ohio over the weekend, to celebrate the 40th anniversary of an episode the show filmed there in 1973, the Cincinnati Enquirer reports.

The actors met with fans, shared memories from the show and introduced clips from the sitcom.

Williams, now 58, said he has few memories of being on the show and relies on fans' stories to recall the experience, according to the Enquirer. He also performed a parody of Eminem's "The Real Slim Shady" called "The Real Greg Brady." (Wince.)

The original Kings Island episode aired during the show's fifth and final season, when patriarch Mike Brady (Robert Reed) had drawn up architectural plans to expand the park.

Watch the original episode below:

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View original Brady Bunch Reunion: Greg, Cindy and Peter Return to Kings Island at TVGuide.com