Evan David Taubenfeld (born June 27, 1983) is an American pop singer/songwriter, best known for being Avril Lavigne's lead guitarist and best friend. When intending to study at Berklee College of Music, he received a phone call from Josh Sarubin, inviting him to audition for a new talent he just signed, a young Canadian named Avril Lavigne. Taubenfeld remained in Lavigne's band until September 2004; when he left to focus on his own music.