Deborah Nowalski Kader, better known by her stage name Debi Nova, is a Costa Rican singer-songwriter who resides in Los Angeles. 　　She has been involved in six projects nominated for a Grammy award, a dance song, "One Rhythm", which reached #1 on the Billboard Dance charts, and has collaborated with artists including Boney James, Mark Ronson, Q-Tip, Sérgio Mendes, the Black Eyed Peas, Sean Paul, Ricky Martin and Franco De Vita.