Concert Classics is a live album originally recorded for radio broadcast by the band U.K.This album was originally released without the approval of the band, thus it was considered a bootleg. The album was recorded on 11 July 1978 at Paradise Theatre, Boston, Massachusetts and released on CD in 1999. This album was also re-released in Japan on CD in 2007 as Live in Boston. It has also been released as Live in America. On those later editions the sleeve notes date the concert as September 11, 1978 performed at Paradise Theatre, Boston. There is no specific date given on the Concert Classics edition.