Garry Shider was diaper man for a very long time. Killer singer. And sweet guy (got to hang with him after soundcheck once). I saw him in P Funk, the P Funk Allstars and Bootsy's band. Usually it was just the diaper and that's it. Maybe a hat.
Looks like Bernie Worrell back there on the keys. (and if you don't know about him, google him. Debuted with the Seattle Symphony at age 12).
Eddie Hazel is wielding the Alembic guitar, not sure who it is with the Travis Bean.
Too many good people gone too soon on that stage.