SNL celebrity impressions
Credit: Mary Ellen Matthews/NBC/NBCU Photo Bank via Getty Images

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Saturday Night Live, the legendary show that is credited with bringing comedians Steve Martin, Will Ferrell, Maya Rudolph, Tina Fey (and more!) to the masses, is marking a major milestone with its 40th anniversary this weekend. In honor of the star-studded celebration, we're taking a look back at the spot-on impressions on SNL through the years.

From Tina Fey as Sarah Palin to Dan Akroyd as Julia Child, see some of the most memorable caricatures on the sketch comedy show.