Complex sentence: First released in 1974, the song was made famous by the girl group Labelle; produced by Allen Toussaint, "Lady Marmalade" became a number-one hit the following year.
Split into simpler sentences: First released in 1974, the song was made famous by the girl group Labelle. Produced by Allen Toussaint, "Lady Marmalade" became a number-one hit the following year.