simpsonswiki.com

lobdA TIL that The Simpsons had an official Death Note crossover comic in treehouse of horror #14 where Bart Simpson is Light Yagami and Lisa Simpson is L and Krusty the clown is Ryuk
Wkbr8 TIL that the singer for the Canyonero theme song in The Simpsons was Hank Williams Jr.
LkekZ TIL that Paul McCartney, George Harrison and Ringo Starr have all made separate special guest voice appearances, as themselves, in episodes of The Simpsons. Of the "Fab Four", the only Beatle to never make an appearance is John Lennon, who was murdered in 1980, nine years before the show started.