Apocalyptica

Apocalyptica are a wonderful cello band,they have done some great Metallica, Sepultura & Pantera covers i have their Inquisition Symphony & Plays Metallica by Four Cellos albums and i am really impressed. I've never actually listened to this kind of music before, admittedly i don't think i am going to start listening to tons of cello music but it makes a refreshing change and their take on Metallica's music especially is pretty damn good as far as covers go they have done some of the best. Are there any others fans? Or listeners of their music with an opinion?