Alan Singer/NBC/NBCU Photo Bank
Wayne Gretzky
The famed NFL star hosted an episode in 1989, becoming the first and only hockey player to ever do so.
Alan Singer/NBCU Photo Bank
Hulk Hogan
The pro wrestler-turned-reality TV star co-hosted a 1985 episode alongside Mr. T.
Alan Singer/NBC/NBCU Photo Bank
Nancy Kerrigan
The ionic Olympic ice skating silver medalist hosted a 1994 episode of SNL that featured Aretha Franklin as musical guest.
Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images
Michael Phelps
The former competitive swimmer and record holder for most Olympic gold medals hosted the season 34 premiere in 2008.

