What instruments are used for michael jackson billie jean song?

BASS GITAR

For the most part it was done by engineers using synthesizers in a studio. The "music" tracks were perfected first and then M.J. did voice over-dubs. After the recording, the choreographers synced M.J. to a routine for the video and the same show was done on the road without any actual singing but all pre-recorded. Typical Pop Star glam extravaganza. Flash and tech and no talent needed.
By the way, Britt was sharp the other night too eh? I rest my case.

Drum, piano, and an unforgettable bass. That song has the dopest bass line!