Listen to What Are You Doing the Rest of Your Life? (From "The Happy Ending") online. What Are You Doing the Rest of Your Life? (From "The Happy Ending") is an English language song and is sung by Sax Project. What Are You Doing the Rest of Your Life? (From "The Happy Ending"), from the album Saxo and Movies Vol. 3, was released in the year 2011. The duration of the song is 5:38. Download English songs online from JioSaavn.