500 Days of Summer co-stars Zooey Deschanel and Joseph Gordon-Levitt collaborated for a special New Year's duet and RadarOnline.com has the video for you.

In a song titled What Are You Doing On New Year's Eve? Zooey strums on a ukelele while Joseph plays the acoustic guitar, they both sing, and it's oozing with cuteness!

"I have known Joe Gordon-Levitt for going on 12 years. We first met in the summer of 2000 while doing a tiny movie called Manic, 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," Zooey wrote on her website, HelloGiggles where she posted the video.