Adam Wade Gontier (born May 25, 1978) is a Canadian musician and singer-songwriter. He is the former lead singer, rhythm guitarist and main songwriter of the Canadian active rock band Three Days Grace. Gontier left the group on January 9, 2013. In addition to his work with Three Days Grace, he has been involved in collaborations with other bands including Art of Dying and Apocalyptica. Since his departure from Three Days Grace, Gontier has begun his own solo band.