Philip Steven Labonte (born April 15, 1975) is an American musician from Massachusetts, best known as the lead singer of the American metalcore band All That Remains. Labonte is the former lead vocalist for Shadows Fall, was the touring vocalist for Killswitch Engage in early 2010, and also filled in for Five Finger Death Punch vocalist Ivan L. Moody in late 2016.
In the mid-'90s, Labonte was in a band called Perpetual Doom. The band played death metal and its members were teenagers at the time. The original vocalist of Perpetual Doom was Scott Estes; Labonte, however, took over the vocal position in 1993 after Estes joined the Navy, and also played the guitar. In August 1993, Phil left to join the Marine Corps. Perpetual Doom remained inactive for nine months in Phil's absence. In June 1994, upon Phil's return, Perpetual Doom resumed writing with increased intensity. Other members included Ken Robert (vocals, guitar, now of Split Shift), Bill Brault (bass, now in Split Shift), and Stephen "Steve" Gonsalves (drums), who went on to become a paranormal investigator and future cast member of Ghost Hunters. Perpetual Doom released a seven-track demo in 1995 called "Sorrow's End".