Joseph Gordon-Levitt and Zooey Deschanel have united once again for a New Year's Eve ditty. The duo posted on YouTube a clip of themselves singing a cover of What Are You Doing New Year's Eve?

Gordon-Levitt and Deschanel make for a decidedly mellifluous duo. They starred together in (500) Days of Summer and reunited for the smaller screen to sing holiday greetings.

Deschanel is currently starring in the Fox television network's New Girl, and she has nothing but kind, affectionate words for Gordon-Levitt.

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 makeup 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, Deschanel wrote on her YouTube page.

This New Year's Eve song only further proves their on-screen chemistry.

Deschanel split from her Death Cab for Cutie husband, Ben Gibbard, in November. It's amicable, it's mutual, a source said of the couple's decision to split. The intention is to move forward with a divorce.

On a lighter note, the actress has been nominated for a Golden Globe award for her acting chops in New Girl. She told the Los Angeles Times the nomination is like ... like cake and ice cream. And she added, I've been working a really long time as an actress -- I know how special and rare it is to get recognized like this.

Gordon-Levitt also has been nominated for a Golden Globe award this, as he has been recognized for his performance in the movie 50/50. Many have called him the best young actor in Hollywood at this time.