The band was created in
Partille, a suburb to
Göteborg in 1995, as a fusion of the two
rock bands "
PsychoBetaBuckDown" (with Martin as vocalist) and "
Hyperbug" (with Johan as bassist). The two bands shared the same local and had played together a few times. The bands had also finished second and first respectively in a
communal rock band competition in 1994. Martin and Johan decided to play together in the 1995 competition and Johan also changed from bass to his original instrument, drums. They needed a guitarist and a bassist and found Daniel (from the band "In a Pig's Eye") and Thomas (from the
Judas Priest cover band "Just as Priest"). Their first repetition was held in August 1995, with Martin singing in
English for about ten minutes before fooling around and starting to sing in
Swedish. It sounded strange, and they decided to continue with Swedish texts. The name of the band, which is an abbreviation for
locomotive in Swedish, was chosen as a reference to their music style; "heavy, compromiseless and totally over-running"! They won two large music competitions in the next nine months, being awarded with studio time and the production of two
singles. Their first
album was released in November
1996 and contained six songs. The band signs their first contract with the
record label company "Stockholm Records" in the summer of
1997, and they record their new album during
1998. They also play at the
Hultsfred Festival (
Hultsfred) for the first time the same year. LOK made their last appearance ever in
Malmö, in the autumn of
2002. They played in
Göteborg for the last time just a few days before that, and at that
gig, they also recorded a live album, being their last release. After problems between the members, the band was declared dead. They said that they had showed
Sweden that
hardcore music could be in
Swedish, and after five albums, their
purpose had been reached, and thus there was no reason for the band to live on. Two of the former members, Martin Westerstrand and Daniel Cordero along with two new members, started the band
Rallypack in
2004 and recorded the album 'Sod Off, God! We Believe In Our Rockband' being their first and last English record and the only record under the name
Rallypack. Rallypack became
Lillasyster in
2006, and released their debut album
Hjärndöd musik för en hjärndöd generation (Braindead Music For A Braindead Generation) in
May 2007.