Madonna:

Bass (Electric)

Percussion

Sax (Tenor)

Vocals (Background)

Engineer

Art Direction

Vocals (Background)

Guitar, Arranger

Synthesizer, Piano, Piano (Electric)

Synthesizer

Synthesizer, Piano, Arranger, Drums, Piano (Electric), Moog Synthesizer, Fender Rhodes, Co-Arranger, Moog Bass

Photography

Vocals (Background)

Guitar

Remixing, Mixing, Mixing Engineer

Producer, Remixing, Mixing

Engineer

Programming, Drum Programming

Vocals, Vocals (Background), Main Performer, Cowbell

Producer

Engineer, Mixing Engineer

Vocals (Background)

Guitar

Bass

Guitar, Programming, Producer, Drum Programming