Michael Barr is an American musician best known as one of the vocalists of LA-based metalcore band Volumes. Barr helped form the band in 2009 and appears on four Volumes projects: The Concept of Dreaming, Via, No Sleep and Happier? In 2015, Barr announced that he parted ways with the band due to musical differences, after which he released R&B/pop/soul inspired music. In 2021, Barr officially rejoined Volumes.