Kerli is an Estonian singer and songwriter known for her unique blend of pop and electronic music. She gained international recognition with her debut single "Walking on Air" in 2008, which showcased her ethereal sound and distinctive style. Her music often features themes of empowerment and self-expression. In addition to her solo work, Kerli has collaborated with various artists and contributed to soundtracks for films and television. She is also recognized for her striking visual aesthetic, often incorporating elements of fantasy and whimsy into her music videos and performances.