ABOUT SHELLBACK
Swedish songwriter and producer who was listed as the Number 1 producer of 2012 in Billboard Magazine's year-end issue.
He started out as a drummer in local bands before becoming a vocalist in hardcore metal bands, leading him to meet Max Martin , an event that catapulted his career.
He was signed to Max Martin 's production company Maratone and helped to write at least six Number One singles.
He came from a family living in Karlshamn, Sweden.
He wrote many songs for Britney Spears including If U Seek Amy and 3.
