Apocalyptica is a Finnish cello metal band, composed of classically trained cellists and, since 2005, a drummer. Three of the cellists are graduates of the Sibelius Academy in Helsinki, Finland. Their music features elements from classical music, neo-classical metal, thrash metal, and symphonic metal.

1999, Antero Manninen left the group, and was replaced by Perttu Kivilaakso. In 2000, Apocalyptica released their third studio album, Cult, which now featured 10 original songs, and only 3 covers. And it was after the recording of Cult that an Apocalyptica track was first seen featuring vocals, Path Vol. 2. In 2002, Max Lilja left the group and joined Hevein, leaving Apocalyptica with only three members.

In 2003, Apocalyptica released their fourth studio album, Reflections, which consisted for the first time of all original songs. Reflections featured a more experimental sound, instead of the previous acoustic style arrangements found on Inquisition Symphony and Cult. Dave Lombardo from Slayer played drums on five songs from Reflections. As he was unable to join the band on stage on the following tour, the band hired Mikko Sirén, who would stay with the band for future tours as well as the recording of the next album.

In 2005, Apocalyptica released their fifth studio album, Apocalyptica. This album featured a number of guest musicians including Ville Valo of HIM, Lauri Ylönen, and once again Dave Lombardo. They also recorded the Intro for Bullet For My Valentine's album The Poison. In December 2005 Mikko Sirén was announced as an official bandmember after having played around 200 shows with the band.

Apocalyptica released their sixth studio album, Worlds Collide, on September 17, 2007. To the surprise of many, the album includes a cover of the German version of David Bowie's song "Heroes". Till Lindemann of Rammstein, for whom they opened on the Reise, Reise tour, was the guest vocalist on the track "Helden". This album, Worlds Collide was released on April 15, 2008 in the United States.

To end 2007, the band toured Europe successfully, selling out many of the venues they played. They were directly supported by the gothic metal band Lacrimas Profundere.

Apocalyptica announced a large world tour for 2008, so far including concerts in Europe, North America and Mexico. They have sold over two million albums to date. They are also scheduled to play KFMA Day in Tucson, AZ with Metallica on May 16 and on June 5 on Rock in Rio Lisboa, Portugal.

In June 2008, during the Rock in Rio concert in Lisbon, Apocalyptica joined the Greenpeace "energy [r]evolution campaign" and played the Beethoven 5th symphony from the stage.On 29 of June 2008 they performed on the main stage at graspop in dessel, Belgium.

On August 9, 2008, the band performed on the main stage at Ozzfest 2008.