There are at least five bands named Beef:
These are photos from concerts where Beef played, so they may be of other bands that played the concert as well.
Beef Oct 10, 2004 Leiden, South Holland, Netherlands Uploaded by Hans Keijzers
Laberinto / Beef / Green Lizard / Spit Ball Jul 14, 2001 Roelofarendsveen Uploaded by Hans Keijzers