There are at least 7 artists known as Beowulf. Also see Beowülf, a crossover thrash/hardcore punk band formed in Venice Beach, LA in 1981.
These are photos from concerts where Beowulf played, so they may be of other bands that played the concert as well.
Lollapalooza 2022 Mar 25 - 27, 2022 São Paulo, São Paulo, Brazil Uploaded by Mel <3
Lollapalooza Brazil 2022 Mar 25 - 27, 2022 São Paulo, São Paulo, Brazil Uploaded by Carolmarins
Beowulf / Psychosomatic / Head On Collision / Slip Into Coma Sep 18, 2009 Sacramento, California, United States Uploaded by Sacramento Shows
Suicidal Tendencies / No Mercy / Beowulf / Hot Spit Dancers / Sea Hags Sep 13, 1985 Sacramento, California, United States Uploaded by Sactoslacker