At least four musical acts are known to go by the name Sidewinder:
These are photos from concerts where Sidewinder played, so they may be of other bands that played the concert as well.
Pink Fairies / Supertramp / Sidewinder Oct 30, 1971 Great Malvern, England, United Kingdom Uploaded by Zimtrim
Uriah Heep / Trapeze / Isengard / Sidewinder Aug 30, 1971 Great Malvern, England, United Kingdom Uploaded by Zimtrim