Complex sentence: In his early career he was a member of the rock group Th' Dudes and was the main creative force in popsters DD Smash, but since then has released the majority of his recordings as a solo performer.
Split into simpler sentences: In his early career he was a member of the rock group Th' Dudes and was the main creative force in pop band DD Smash. Since then he has released the majority of his recordings as a solo performer.