There are, at least, three bands named Katzenjammer:
These are photos from concerts where Katzenjammer played, so they may be of other bands that played the concert as well.
Cropredy Festival Aug 13 - 15, 2015 Cropredy, England, United Kingdom Uploaded by Mr.Bassman
Passenger (Guinness Tent)
Cambridge Folk Festival Jul 30 - Aug 2, 2015 Cambridge, England, United Kingdom Uploaded by Craig Hatfield
Ben Miller Band
Katzenjammer
Joan Baez
Shooglenifty
Joan Armatrading
The Jaywalkers
Skinny Lister
Wilko Johnson
Frank Turner
Canzoniere Grecanico Salentino
The Skatalites
C C Smugglers