Karoliina Kallio (born 31 August 1979 in Savonlinna, Finland) is a Finnish singer best known as the female lead vocalist of the dance-pop group Waldo's People. She specializes in electronic and dance music.
Kallio had prior experience as a performer before joining Waldo's People, having performed with a cover band called Flipper and released a single titled "Liian kuuma kesä." She also appeared as a house-band performer on the Sub TV program Sub Marine.
Waldo's People represented Finland in the Eurovision Song Contest 2009 in Moscow with the song "Lose Control." The group qualified from the first semi-final on 12 May 2009 and advanced to the final, where they finished in last place (25th position).
In addition to her music career, Kallio has appeared in film and television, including the music video Waldo's People: Lose Control (2008) and coverage of the Eurovision Song Contest.
