Honestly, I adore Kristen Bell. From her TV shows to her Enterprise commercials to her amazing singing voice - she never fails to charm me. Here's the video (also adorable) for that "Text Me Merry Christmas" song, as well as a behind the scenes video of Kristen recording the song.
Did I mention I have a celebrity crush on Kristen Bell? Ok. Good. Didn't want to be vague or anything. :)