Complex sentence: The first Hellacopters rehearsal took place on November 4,1994 as just a jam session, after two more rehersals the band released their first single "Killing Allan" in January 1995 on their own label Psychout Records.
Split into simpler sentences: The first Hellacopters rehearsal took place on November 4,1994 as just a jam session. The band released their first single "Killing Allan" in January 1995 on their own label Psychout Records.