The sisters' 1945 hit "Rum and Coca Cola" became one of their most popular and best-known recordings, but also inspired some controversy. Some radio stations were reluctant to play the record because it mentioned a commercial product by name, and because the lyrics were subtly suggestive of local women prostituting themselves to U.S. servicemen serving at the then naval base on Trinidad. The song was based on a Trinidadian calypso, and a dispute over its provenance led to a well-publicized court case. The sisters later told biographers that they were asked to record the tune on short notice and were unaware either of the copyright issue or of the implications of the lyrics.