Sid Vicious was the bass guitarist, drummer and vocalist of the band Sex Pistols. When he was hanging with the band, he met Nancy Spungen, who offered him chocolate (replacing drugs on the episode) to impress him. They became addicted to it, until Sid ruins one of the Sex Pistols shows. Nancy made him quit the band and start a solo career with her as his manager. He heavily resembles the well known bully and tyrant Nelson Muntz Hinting partially a connection.
Behind the Laughter
In October 1978, Sid was arrested for murder, as he was the main suspect behind Nancy Spungen's death with a fatal stab in the abdomen. He commited suicide months after her death.