MSNBC host Rachel Maddow made a startling admission to David Letterman Wednesday night: she used to be a huge Glenn Beck fan.

During her appearance, the liberal TV host said that she really liked Beck and his radio show prior to him getting a TV gig at Fox, even admitting she used to listen to Beck every day.

"I think he was the most talented radio personality of my entire generation," she told Letterman. She described Beck's pre-Fox radio show as "incredibly performative...he inhabited all these different characters, he would do all these voices, it was very entertaining. really funny, really fast-paced, very unpredictable, surprising, very good."

But now her opinion has changed: "He mostly just talks about himself and it's not as fun. But when he was on the radio, before he got on TV, he was great."

The compliments were mostly backhanded, Letterman and Maddow made sure to take jabs at Fox and conservatives in general. Letterman even called Beck "loony" and a "blowhard":

(H/T: HuffPo)