Wikisimpsons - The Simpsons Wiki
KISS, stylized as KIϟϟ, are an American rock band.
When Marge was pregnant with Bart, she listened to a lot of KISS, including the album Destroyer, and with Homer dressing up as Gene Simmons. Years later, Marge thought that listening to KISS was that was responsible for Bart's rebellious streak.
KISS is a music group that Marge visited with her girlfriends when she was dating Homer. After the concert, she lost her girlfriends and when she was going to call for a ride, she met the singer Gene Simmons. Simmons asked Marge if she want go out with him and she did it. That night had the two sex and he got Marge pregnant with Bart. In the morning when Marge woke up Simmons was gone and had just left his bass guitar.