>> "ok computer" is like "dark side of the moon" of the '90s. it really showed this is going to be a defining band of the next 25 years. >> you could tell the whole story of the evolution of what came out of grunge through radiohead, and what came out of alternative through beck. ♪ in the time of chimpanzees i was a monkey ♪ ♪ butane in my veins >> i was always interested in hip-hop. sort of non-linear word connections. ♪ i'm a loser, baby, so why don't you kill me ♪ >> beck is defining what's happening now with that mesh of styles. he's mixing electronic, country, rap, rock and roll, everything. everything. he's throwing the kitchen sink in. ♪ >> out of the ashes of nirvana dave grohl created the foo fighters. >> this is the first time in my