20 Insanely Great U2 Songs Only Hardcore Fans Know

Robert Plant once said that his favorite U2 song was "Salome." Who knew the guy had such deep knowledge of U2 B-sides? This funky song was cut during the Achtung Baby sessions and remixed a bunch of times before it wound up as the B-side of "Even Better Than the Real Thing." It's also the name of a three-disc set of early Achtung Baby songs that somehow leaked out to fans during the making of the album, seriously pissing off the band.