Ron McKernan
- harmonica, vocals
Janis Joplin
- vocals
David Getz
- drums
David Freiberg
- electric bass
Doug Sahm
- electric guitar
Gary Duncan
- electric guitar
John Cipollina
- electric guitar
Grace Slick, replacing original Jefferson Airplane vocalist, Signe Anderson (who quit to have a baby), made her first appearance with the Airplane in San Francisco.