Fall Out Boy's "The Kids Aren't Alright" song title is not a reference to The Offspring's 1998 single of the same name. It actually alludes to The Who's 1979 rockumentary film called The Kids Are Alright.
"(What's So Funny 'Bout) Peace, Love, and Understanding" was written by Nick Lowe in 1974. The original version with his group Brinsley Schwarz was kind of somber, but Elvis Costello made it a classic with his 1978 uptempo take.
The chorus of "Voulez-vous coucher avec moi ce soir" in "Lady Marmalade" is French for "Do you want to sleep with me tonight?" When Labelle performed it on television, they had to change it to "Voulez-vous danser avec moi ce soir" (Do you want to dance with me tonight?).