credits and personnel ; personnel madonna -- vocals , background vocals bernard edwards -- bass brenda king -- background vocals curtis king -- background vocals lenny pickett -- saxophone nile rodgers -- guitar , synclavier robert sabino -- synthesizer nathaniel s. hardy , jr . -- synthesizer frank simms -- background vocals george simms -- background vocals dave weckl -- drums tony thompson -- drums ; design jeri mcmanus -- art direction , design jeffrey kent ayer -- art direction , design steven meisel -- photography maripol -- stylist ; production madonna -- producer stephen bray -- producer nile rodgers -- producer jason corsaro -- engineer budd tunick -- production manager bob ludwig -- audio mastering jimmy bralower -- drum programming ; record company sire records -- record label , u.s. copyright owner ( 1984 , 1985 ) warner bros. .