Former Lead Vocalist and Choreographer for Madonna, Niki has also performed and recorded with names such as; Ray Charles, David Sanborn, Patrice Rushen, Michael Sembello, Leann Rimes, Michelle Branch, Santana, Kylie Minogue, Luther Vandross, All Saints, Wilton Felder of the Jazz Crusaders, Stanley Turrentine, the Righteous Bros., Julian Lennon, Anita Baker, Mick Jagger and Whitney Houston.