Recognize this song? Intrepid Undercover watchers whose memories stretch back a few days will recognize "Merry X-Mas Everybody" by Slade as the song that Brendan Benson covered. But here's a wildly different version by British songstress Kate Nash and her band. We think you'll agree it was so nice, you'll want to hear it twice. Nash's latest album is the spunky, endearing My Best Friend Is You. A.V. Club contributor Marc Hawthorne says it's one of the best albums of the year, and not just because he has a massive crush on Kate.