 In North America, Summer was signed to Geffen from 1980-1988 and Atlantic from 1989-1991.Internationally, Geffen released her material from 1980-1981 but all subsequent Geffen/Atlantic releases were released by Warner Bros. Records.Summer's original North American label (Casablanca), now owned by PolyGram, also released two official Donna Summer singles in the United Kingdom in 1982 and 1983 respectively; these were new remixes and/or edits of two of Summer's biggest hits from during her time with that label.