Zooey Deschanel & Joseph Gordon-Levitt: What Are You Doing New Year"s Eve?

Those two stars of 2009″s bittersweet romantic comedy (500) Days of Summer, Zooey Deschanel and Joseph Gordon-Levitt, have reunited – just in time to ring in 2012.

With a ukulele in her hand and a guitar in his, the attractive costars strum and sing composer Frank Loesser”s 1947 “What Are You Doing New Year”s Eve,” which, even Deschanel admits, was most famously rendered by Grammy-winning jazz great Nancy Wilson.

In a message accompanying their decidedly low-budget video on her HelloGiggles website, the New Girl Golden Globe nominee notes that she and Gordon-Levitt have known each other for nearly 12 years, after meeting during “the summer of 2000 while doing a tiny movie called Maniac, where we bonded over a mutual appreciation for Harry Nilsson and Nina Simone and I have been lucky enough to call him one of my dearest friends ever since.”

Eight years later, she goes on to say, they did (500) Days of Summer and “spent every lunch hour dancing to Marvin Gaye in the hair and make up trailer; we had loads of fun. I hope to do a thousand more movies with him because hes simply the best.”

Until then, she says, “we made a little New Year”s duet for all of you! … ENJOY!”