Zooey Deschanel and Joseph Gordon-Levitt are curious about your New Year's Eve plans.
The two actors perform a duet in a video posted this week on YouTube, musically asking, "What are you doing New Year's Eve?"
She plays ukulele and he plays guitar in the two-minute video of the 1947 jazz song.
Deschanel calls her "(500) Days of Summer" co-star "simply the best" in a note accompanying the video.
The two actors don't reveal their New Year's Eve plans in the clip, but they will be celebrating together in 2012. Both are nominated for Golden Globe Awards: she for actress in a TV comedy for "New Girl," and he for his lead role in the film "50/50."