Two decades ago, Apocalyptica's career-defining album, Plays Metallica by Four Cellos was released, selling over 1.5 million copies to date. In celebration of it's 20th anniversary, the band honored the release with a Plays Metallica by Four Cellos world tour. Featuring four cellos and a drum set and Metallica covers only, show stopping highlights come in the form of takes on "Enter Sandman," "Master of Puppets" and "Nothing Else Matters."