The ESP AM J-4 is an electric bass used by Prince on the One Night Alone tour. It is a Jaguar-style bass with an acrylic body. It was one of several guitars purchased in Tokyo in 2002 (alongside the Daisy Rock Heartbreaker Artist, Fender Japan ST57-70TX Stratocaster and ESP AM J-4). It is not known whether Prince played this bass live or in the studio.
It is currently in the collection at Paisley Park.
