Today, one of metal's most prolific and eccentric musicians, Devin Townsend, is releasing a brand-new DVD box-set, By A Thread - Live in London 2011. The four-DVD set features footage from each of Townsend's sold-out concerts in London during which all four Devin Townsend Project albums were played in their entirety.

Devin Townsend's productivity is really something to be marveled at, and at this point in his career, that zany Canadian shows no signs of slowing down.

Yesterday, the Land Down Under got a special treat at the Perth stop of Australian's Soundwave Festival as Gojira were joined onstage by Devin Townsend and Meshuggah guitarist Fredrik Thordendal for a live performance of "Of Blood & Salt." Check out the fan-filmed footage below.