Darren Criss Instagram – i WAS gonna post some silly song-related pun… but I just gotta be real about how incredibly thankful I am to @adamlambert for lending his gift to this duet. I realize how lucky I am to have gotten a piece of his super abilities on this song, and I can’t thank him enough. I love how it turned out and I’m proud of what we made together. Thanks, Adam, you’re a true Christmas gift. Love ya pal. Here are some behind-the-scenes shenanigans.