I had no idea this was a cover. The famous version of “Lady Marmalade” by Labelle is from 1974 but it wasn’t the first. The original version by the Eleventh Hour was also released in 1974. Even though the Eleventh Hour included one of the song’s authors, their version is not nearly as good as the much louder and faster one by Labelle. A new version by Christina Aguilera, Lil’ Kim, Mya, and Pink was on the Moulin Rouge soundtrack in 2001