In 2013 , the band hosted comedy music festival , Festival Supreme in Los Angeles , which would go on to host three more editions . In 2014 , the band were invited to feature on '' Ronnie James Dio – This Is Your Life '' , a compilation album where various artists cover Ronnie James Dio songs to raise funds for cancer . Their cover of " '' The Last in Line '' " won a Grammy for best heavy metal performance at the 57th Annual Grammy Awards . In 2018 , the band would begin independently releasing an animatic hand-drawn web series titled , '' Tenacious D in Post-Apocalypto '' , each of the six episodes uploading exclusively to YouTube every week starting from the 28th of September . Columbia Records released the album '' Post-Apocalypto '' on November 2 , 2018 , just after the release of the sixth episode
57th Annual Grammy Awards
57th Annual Grammy Awards
Tenacious D