Kym Mazelle (born Kymberly Grigsby; August 10, 1960) is an American singer-songwriter, multi-instrumentalist, and educator, and has been a major figure in popular music for over three decades. She is renowned as an innovator and is widely known for her eclectic work, stage presence, and raspy vocal range. She is widely regarded as the pioneer of house music. Her music combines R&B, soul, funk, house music, disco, and pop. She is credited as "The First Lady of House Music".
Mazelle was raised in Gary, Indiana. She lived on the same street as the Jackson family and knew Michael Jackson's mother and uncle.