7th Symphony is not just in the literal sense the seventh stroke of the band Apocalyptica, but it is also their seventh album. The four cellists are supported by four guest singers. For the single 'End of Me,' Bush frontman Gavin Rossdale collaborated, and for the songs 'Not Strong Enough' and 'Broken Pieces,' Brent Smith (Shinedown) and Lacey (Flyleaf) had a hand in it. Apocalyptica has experimented in all directions on this album, with the single 'Bring The To Light' featuring Joe Duplantier (Gojira) being a prime example. Apocalyptica remains true to their style with 7th Symphony and adds new elements in the right places.