By InStyle Staff
Updated Feb 13, 2015 @ 1:46 pm
Mary Ellen Matthews/NBC/NBCU Photo Bank via Getty Images

This story first appeared on Time. To read the full feature, go to Time.com now.

Saturday Night Live, the legendary show that is credited with bringing comedians Steve Martin, Will Ferrell, Maya RudolphTina 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.

READ MORE: The Best Celebrity Impressions on SNL