He formed his own band Hanson also known as Junior Marvin's Hanson in 1973 and recorded two albums. Marvin met Bob Marley on 14 February 1977 and joined Bob Marley and The Wailers Band. After Bob Marley's death Marvin carried on releasing material under the name The Wailers Band releasing the albums ID, Majestic Warriors, Jah Message, and Live 95-97 My Friends. In 1997 Marvin left The Wailers Band and relocated to Brazil, where he formed a short-lived group called Batuka. Following his return to Jamaica he continued working as a session player and later toured with Kaliroots and The Wailers Band. He has been touring with The Original Wailers since 2009 and went Solo in 2011. On February 6th 2013 Junior Released two CDs "Smokin' To The Big M Music " and " Lion To Zion ". In 2014 he formed a new band, Junior Marvin's force one and returned to the studio to record a new album in March 2014.