E-Rotic

E-Rotic was a German commercial Eurodance act, originally established back in 1994 by Lyane Leigh and Raz-Ma-Taz AKA Richard Michael Smith. Lyane and Richard had an irreconcilable argue with their manager and left the group to establish their own dance act called S*E*X* Appeal in 1996. It remained a secured secret that Lyane, even if no longer with the group, was still giving her voice to E-Rotic. She can be heard on all releases until "Gimme Gimme Gimme" released in 2000.
It was revealed recently (and confirmed) that David Brandes was the real voice of every E-Rotic rappers, apart from the very first single.
Jeanette Christensen was hired to lipsync the parts sung by Lyane Leigh and rapper Terence d'Arby was hired to lipsync the rapping of David Brandes.
Around October 1996, Terence d'Arby left the group and was "replaced" by another frontman: Ché Jouaner.
Jeanette Christensen left the group in 2001, followed by Yasemin 2002 and Lydia in 2004.
After their great success in Europe in the mid-90's, E-Rotic had a relative success in Japan.