Complex sentence: The band was formed by Morris, Urlich, Coleman and Dobbyn, students at Sacred Heart College in Auckland, which was the same school that Neil (Crowded House) and Tim Finn went to.
Split into simpler sentences: The band was formed by Morris, Urlich, Coleman and Dobbyn, who attended Sacred Heart College in Auckland. It was the same school that Neil (Crowded House) and Tim Finn went to.