(LONDON) - Polydor UK has assembled a five-CD boxed set of the Jam, one of Britain's most influential bands from the new wave era. Coinciding with the 20th anniversary of the act's chart debut with the single "In The City," the set, due May 19, includes every studio recording made by the Paul Weller-led trio; one disc contains 22 previously unreleased tracks. The box will probably arrive later this year in the U.S.