At some point in the early 21st century, Radiohead became something more than a band: they became a touchstone for everything that is fearless and adventurous in rock, inheriting the throne from David Bowie, Pink Floyd, and the Talking Heads. The latter group gave the band its name -- it's an album track on 1986's True Stories -- but Radiohead never sounded much like the Heads, nor did they take much from Bowie apart from their willingness to experiment. Instead, they spliced Floyd's spaciness with U2's messianic arena-rock heft, bridging the gap with guitar skronk borrowed fr...