Anastacia Lyn Newkirk is a renowned American singer-songwriter, producer, and former dancer. She first gained fame in Europe, Asia, and Oceania with her debut album, Not That Kind, in 2000. Her powerful mezzo-soprano voice and fusion of pop and rock genres earned her the nickname 'the little lady with the big voice'. Throughout her career, she has sold over 30 million records worldwide and is also known for her philanthropic work in breast cancer awareness.