It might be cold outside, but it's plenty steamy in here thanks to Lady Gaga and Joseph Gordon-Levitt.
The duo cozied up Thursday night for a duet of "Baby, It's Cold Outside" during Gaga's Muppet Holiday Spectacular on ABC.
See also: 'Little Drummer Boy' Cover Brings Out Your Festive Spirit
Levitt and Gaga crooned away to an old-school version of the Christmas tune, as Gaga donned a stunning red gown and seduced a dapper looking Levitt. Long story short: It was adorable and will make you ask Santa for a JGL of your own this Christmas.
Levitt has been a longtime fan of the Mother Monster. A video of the actor covering "Bad Romance" went viral in 2010.
But JGL wasn't the only apple of Gaga's eye. The star sang along with several of the Muppets, including the one and only Kermit, during the 90-minute special. And Miss Piggy stole the show with her own rendition of "Santa Baby."
Oh yeah, Sir Elton John stopped by too — but even he can't compete with a little green frog.
BONUS: Deck the Halls With These 15 Muppet Christmas Songs
Simple, yet awesomely soothing. Rowlf and John Denver make the perfect holiday duo.
Awesome. With a capital "A."
The gang performs both songs at NBC's Christmas in Rockefeller Center in New York on Dec. 2, 2009.
After getting lost in the snow on the way to a holiday party in Atlanta, Cee-Lo Green -- from Gnarls Barkley and TV's The Voice -- winds up at Kermit's house for a Muppet style holiday party.
The perfect cure for a bad day.
Bird-style.
Do you believe in Santa? Kermit sure does. This song is from the 2008 Macy's Thanksgiving Day Parade.
From the album "A Christmas Together."
"I don't know if you believe in Christmas ... but if you believe in love, that will be more than enough for you to come and celebrate with me."
John Denver and the crew in singing "12 Days of Christmas." Originally aired during the 1979 'A Christmas Together' holiday special.
Gonzo realizes that, while important, Santa Claus as a whole represents something even greater.
"When a cold wind blows it chills you -- chills you to the bone."
From The Muppet Christmas Carol, this song introduces Michael Cane's Ebenezer Scrooge as a cold-hearted, "bah humbug!"-muttering pessimist.
Kermit and Robin the Frog -- just too darn cute.
The affably grumpy Marley and Marley sing together as Christmas ghosts in The Muppet Christmas Carol.
From The Muppet Christmas Carol. Here, Scrooge realizes the importance of Christmas -- through the art of Muppet-style singing, of course.
"Let us always love each other."
From The Muppet Christmas Carol.
Image: ABC via YouTube, darkthrone615