Nicole Prescovia Elikolani Valiente Scherzinger (born June 29, 1978) is an American singer, songwriter, dancer and occasional actress who is best known as the lead singer of the Pussycat Dolls.Nicole Prescovia Elikolani Valiente Scherzinger (born June 29, 1978) is an American singer, songwriter, dancer and occasional actress who is best known as the lead singer of the Pussycat Dolls.