Question: Mindless Self Indulgence and Tappi Tíkarrass are both what?
Related documents: [0]  [DOC] Mindless Self Indulgence (often shortened to MSI) is an American electropunk band formed in New York City in 1997. Their music has a mixed style which includes punk rock, alternative rock, electronica, techno, industrial, hip hop and breakbeat hardcore. Their group name is derived from an Ayn Rand quote found in the book "Atlas Shrugged". [END] 
[1]  [DOC] Tappi Tíkarrass was an Icelandic punk band which added elements of funk, rock and jazz to their music, marking a difference from other traditional bands at that time. The band is also considered the first serious music project of now renowned singer Björk Guðmundsdóttir. [END] 
Answer: 
band
band