Complex sentence: Robison dropped out of Amherst High School in the tenth grade, to join the Amherst-based rock band "Fat", but later an honorary diploma from The Monarch School in Houston in May 2008.
Split into simpler sentences: Robison dropped out of Amherst High School in the tenth grade, to join the Amherst-based rock band "Fat". Robison would later receive an honorary diploma from The Monarch School in Houston in May 2008.