QUOTE
What makes him stupid? He never heard of them, so he asked who they were in hopes that he could get an answer. Prick
He knows the name of the band. Unless he's completly ignorant of google or wikipedia (which has virtually everything, so it's probably in there), he's joking. In short, wikipedia can do a better job of explaining something than anyone on this forum any day.
T-MaStAA, a band with as many albums as MEGADETH and has played over a decade isn't exactly what most people call underrated. I don't think he literally meant classic rock either though.
QUOTE(Bands Kurt Cobain thought were underrated)
The Vaselines, The Melvins, Daniel Johnston, The Meat Puppets, the Pixies, Young Marble Giants, The Wipers, and The Raincoats
That's the best I can do, I just don't listen to much classical rock, sorry.