Complex sentence: Fecal Matter was a short-lived punk band from Aberdeen, Washington formed by Kurt Cobain, who would later become famous as the guitarist and frontman of the grunge band, Nirvana.
Split into simpler sentences: Fecal Matter was a short-lived punk band from Aberdeen, Washington. It was formed by Kurt Cobain, who would later become famous as the frontman and guitarist of the grunge band, Nirvana.