Watch a young Kiernan Shipka parody Britney Spears in this 'Jimmy Kimmel Live' throwback clip

https://youtu.be/P2JtVKAzkys

Did you know that Kiernan Shipka got her start doing sketches on Jimmy Kimmel Live (we definitely did not!) It turns out before the Mad Men star stepped into Sally Draper's 60s era dresses, Shipka was doing some very inappropriate humor for her age on the late night show. When the present-day Shipka stopped by Kimmel Thursday night, he showed a clip of one of her old sketches, where she plays Elissa Webber, a student in Britney Spears' dance class. Unfortunately, Britney was not the greatest influence on the young Elissa. We're glad Shipka has turned out pretty OK.