Kurt Cobain (February 20, 1967-April 5, 1994) was the lead singer and guitarist of the influential rock band Nirvana. He died of an apparent, highly subjective suicide on April 5, 1994.
He appeared with wife Courtney Love in "Dammit Janet!", in a cutaway explaining what would've happened if he didn't do drugs.
He was one of the people Brian met in Heaven after dying of eating chocolate out of the garbage in Stewie Griffin: The Untold Story, in the "Stu & Stewie's Excellent Adventure" segment.
He was saved from suicide by Stewie in "Family Guy Viewer Mail No. 2", convincing him to eat Häagen-Dazs instead. In the present he is not only still alive but morbidly obese.