Zooey Deschanel and Joseph Gordon-Levitt's starred together in "(500) Days of Summer" and now the two are joining forces again in a YouTube video.

The two actors/musicians teamed up to record a cover version of the classic "What Are You Doing New Year's Eve?"

Have to admit I didn't like there their movie (500) Days of Summer at all! Who knew that Joseph Gordon-Levitt could sing?