Complex sentence: NOFX's controversial song "Creeping Out Sara" is about the two sisters and it's based on an encounter Fat Mike, of NOFX had with Sara while backstage at a music festival.
Split into simpler sentences: NOFX's controversial song "Creeping Out Sara" is about the two sisters. It's based on an encounter between Fat Mike of NOFX and Sara while backstage at a music festival.