Kareen Antonn (born Kareen Antonopoulou on 24 May 1980 in Nogent-sur-Marne, France) is a French singer of Greek and Spanish descent. In 2003, she recorded a pair of duets with British singer Bonnie Tyler; "Si demain... (Turn Around)" and "Si Tout s'arrête (It's a Heartache)", both French/English co...