Steve Miller Band - Rockin' Me

Steve Miller confessed in an interview that yes, the song borrows from Free's All Right Now, and was written for the one time when the Steve Miller Band played in support of Pink Floyd, so he wanted a rock festival kind of song, to get the audience to rally.
The band was:
Steve Miller - lead vocals, guitar, keyboards, sitar, ARP Odyssey, producer
Lonnie Turner - bass
Gary Mallaber - drums