Labelle is an all female singing group who were a popular vocal group of the 1960s and 1970s. Originally forming as The Ordettes in 1960 by lead singer Patti LaBelle and childhood friend Sandra Tucker who was replaced by Cindy Birdsong in 1961 and with the inclusion of former members of the Philadelphia-based Del Capris, Sarah Dash and Nona Hendryx, they eventually changed their name to The Bluebelles in 1962 after signing their first recording contract. Mixing doo-wop and gospel, they became known for performing renditions of pop standards such as "Over the Rainbow" and "You'll Never Walk Alone". Details siehe: http://en.wikipedia.org/wiki/Labelle
LaBelle performs "Lady Marmalade" on Soul Train episode #118 (1974) featuring Patti LaBelle, Nona Hendryx, Sarah Dash.