D'oh-in' in the Wind
Series 10, episode 6
Original airing date: 1998
In this episode Ned Flanders has a hallucination whilst driving and sees Grateful Dead dancing bears and a skeleton which says "Mornin' Ned". The bears and skeleton are followed by marching hammers and Rolling Stones' lips and tongue.
The episode was directed by Mark Kirkland and Matthew Nastuk and written by Donick Cary.