Prior to forming the band, the three sisters were telephone operators in Limburg, whilst Theunissen, Wetzels, and Coumans were in a group called Scum.

[3] Penned by Werner Theunissen, who had been the sisters' guitar teacher, it is estimated that "Mississippi" sold over five million copies worldwide.

[1] By 1978 Hans Lutjens had replaced Coumans on drums, as the band continued to release albums and tour, travelling as far afield as South Africa.

[1] They made regular appearances on the West German TV series, Musikladen, in the late 1970s and early 1980s.

In 2007, they gave their background vocals to the Dutch language reggae cover of "Mississippi" by Dennis Jones.