Merry Christmas Darling by The Carpenters is featured in A Very Glee Christmas, the tenth episode of Season Two. It is featured on the Glee: The Music, The Christmas Album and It is sung by Rachel.
Originally, Rachel was only going sing it to Finn as a Christmas present, but he rejects the gift, making her sing the song alone, with back-up vocals from the band players. With help from the AV Club, she organized Christmas trees on the stage and falling snow for decorations.
Rachel:
Greeting cards have all been sent
The Christmas rush is through
But I still have one wish to make
A special one for you
Merry Christmas darling
We're apart that's true
But I can dream and in my dreams
I'm Christmas-ing with you
Holidays are joyful
There's always something new
But every day's a holiday
When I'm near to you
The lights on my tree
I wish you could see
I wish it every day (New Directions: Aaahhh, aaahhh, aaahhh, aaahhh)
The logs on the fire
Fill me with desire
To see you and to say
That I wish you Merry Christmas (New Directions: Merry Christmas darling)
Happy New Year, too (New Directions: Aaahhh, aaahhh, aaahhh, aaahhh)
I've just one wish on this Christmas Eve (New Directions: On this Christmas Eve)
I wish I were with you (New Directions: Aaahhh, aaahhh, aaahhh, aaahhh) (Ooohhh, ooohhh uh-uh)
Oh, logs on the fire
Fill me with desire
To see you and to say
That I wish you Merry Christmas (New Directions: Merry Christmas darling)
Happy New Year, too (New Directions: Aaahhh, aaahhh, aaahhh, aaahhh)
I've just one wish on this Christmas Eve (New Directions: On this Christmas Eve)
I wish I were with you
I wish I were with you