Tina Fey brought back her Sarah Palin impression during an appearance on The Late Show With David Letterman last night. After claiming she didn't remember how to do the impersonation that made her a household name during the 2008 presidential election, Fey slipped into a few Palin-esque lines:

But the funniest moment came after Fey returned to her own voice and pointed out something she noticed while watching Fox News: that the correspondents refer to Palin as "Governor Palin," despite the fact she left the office over a year ago. Fey said, "It's like calling me 'Dairy Queen employee.' I was once...but I quit."

See the full episode at CBS [via The Daily What].