Complex sentence: Jacksonville guitarist Mike Owings joined The Allen Collins Band in 1984, and wrote several unreleased songs with Allen Collins, and he later went on to play guitar in Molly Hatchet (1999--2000).
Split into simpler sentences: Jacksonville guitarist Mike Owings joined The Allen Collins Band in 1984 and wrote several unreleased songs with Allen Collins. He went on to play guitar in Molly Hatchet (1999--2000).