Because there's the rub: Motorhead united the tribes, inspired extreme metal (there's a reason we chose Overkill as their ...

LOS ANGELES, CA - FEBRUARY 08: (L-R) Musicians Phil Campbell, Lemmy and Mikkey Dee of Motorhead attend The 57th Annual GRAMMY Awards at the STAPLES Center on February 8, 2015 in Los Angeles, ...

LONDON, UNITED KINGDOM - NOVEMBER 13: Phil Campbell, Lemmy Kilmister and Mikkey Dee of Motorhead attend the Classic Rock Roll of Honour at The Roundhouse on November 13, 2012 in London, England.