The LA Weekly listing for Al's Bar this week lists this for Friday:
"Burning Sofa's engaging alt rock, Los Dorxx lay down some jazz-flavored hip-hop, Loser's deliberately addled "squeegee rock" featuring Martian minstreal Beck; plus blues rock from Professor Snowsuit."
That's quite a lineup! This seems to be a rare Loser gig that also advertised Beck as a member; perhaps it was one of his last gigs with them before he left to focus on his own stuff.
Burning Sofa No. 10 was playing around LA then and shared bills with Beck a few times. I've googled but not found any info at all about Los Dorxx or Professor Snowsuit. Curious!