"Come Together" was never the most sensical song in the Beatles' catalog, but when John Lennon wrote one line the last verse- "He got muddy water, he one mojo filter"- maybe he was having a prophetic moment. Almost four decades later, that rock classic has been covered for the Justice League soundtrack by Gary Clark Jr., a man who assuredly has a lot of Muddy Waters in him, and who's got his mojo filter working full-time, transforming the greatest, most time-tested tropes of traditional American music into the blazing-est rock and roll this side of a Jimi Hendrix bonfire.