“So What” is the Japanese-edition bonus track on Metallica’s 1991 album commonly called The Black Album.
The song is a cover of a track by the English punk band Anti-Nowhere League. It appears as track 13 on the Japanese edition, after the 12-song standard program, and runs for 3 minutes and 8 seconds.
The bonus track is easy to confuse with other Metallica cover recordings. “Am I Evil?” and “Breadfan,” for example, are associated with earlier Metallica releases and cover versions, but neither is the Japanese bonus track on the Black Album.
Adding “So What” changes the Japanese edition’s listed total from 62 minutes and 31 seconds to 65 minutes and 39 seconds. The song therefore provides a clear way to distinguish that regional edition from the standard release.