a "B" and said Michele "did a great job as usual", but noted it wasn't a favored holiday song. Of the reviewers who actually discussed Rachel and Finn's performance of "Last Christmas", both Benigno and Stack were enthusiastic and gave grades of "B+" and "A−" respectively. The former called it "one of the more fun songs" in the episode, and the latter described the performance as "really fun and had great production design". Futterman felt that Michele's vocals were "a bit diva-esque for the simple pop tune", but noted that there were "sweet moments". Of the two songs from How the Grinch Stole Christmas! featured in the episode, the first, a voiceover vocal of "You're a Mean One, Mr. Grinch" sung by k.d. lang, based on a version of the song by artist Aimee Mann, as Sue wreaks havoc on the choir room, confused some reviewers, who thought that it was sung by Lynch herself. Benigno was one of these, though he said it was "thoroughly enjoyable", gave the song a "B+", and approved of the change in lyrics from "Mr. Grinch" to "Sue the Grinch". Harper also approved of the change, and admitted she thought Lynch had sung it until Google set her straight. Futterman called the song a "weirdly fitting moment" that "nevertheless fell a bit short of being fully realized". The second song, "Welcome Christmas", was welcomed by reviewers: Benigno described it as "really, really lovely" and gave it an "A". Harper cheered, and noted that the song "was sung very much like a real glee club, without people getting to showboat individually". Futterman characterized it as a "note-perfect performance", and wrote: "The layered harmonies and simple sentiment—'Christmas will always be, just so long as we have glee!'—tie the episode up with a bow, smoothing out the bumps that came before it." Chart history Most of the Christmas songs featured in the episode had been released on Glee: The Music, The Christmas Album four weeks prior to airing. There were two exceptions: "Welcome Christmas" did not appear on the album but was released as a single, and "Last Christmas", which was on the album but had originally been released as a charity single a full year before the episode aired. The top song from the show on the Billboard Hot 100 was neither of these: "Baby, It's Cold Outside" debuted at number fifty-seven once the episode aired,