While none of the other songs that will be featured in this episode of the hit Fox series has been confirmed, the recently released Christmas album features 12 numbers including "We Need a Little Christmas," "Baby, It's Cold Outside," "Last Christmas" and "Jingle Bells," among others.
The Nov. 30 "Glee" episode, "Special Education," was up against a series of holiday specials, including "The Grinch" on ABC, "Rudolph the Red-Nosed Reindeer" on CBS and "Christmas in Rockefeller Center" on NBC, but it still scored the highest ratings in the 8 PM hour, averaging 11.7 million viewers and a 4.6 rating with 18-49-year-olds.
The ratings were a 13 percent increase from last week's episode, "Furt," which were also strong for its hour but were the lowest for an original "Glee" episode this season.
"Glee" airs Tuesdays at 8 PM on Fox. To get in the holiday spirit with "Welcome Christmas" (featuring music by Tony Award-winning composer Albert Hague and lyrics by Dr. Seuss), look below: