Zooey Deschanel and Joseph Gordon-Levitt covered Nancy Wilson's "What Are You Doing New Year’s Eve" and posted it on Deschanel's website HelloGiggles. Here is what Deschanel said in her post:

“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. When we did 500 Days of Summer 8 years later, we 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 he’s simply the best. But in the meantime, we made a little New Year’s duet for all of you! The original by Nancy Wilson. ENJOY! Don’t forget to check out Joe’s website http://hitrecord.org/"