He first achieved international success in 1986, as the singer and front man of the duo Double with the hit single, "The Captain of Her Heart".

During World War II, his father returned to Switzerland, where he met Babette, a daughter of a locomotive driver, and married her.

With the help of publisher Peter Zumsteg, they got the chance to record four songs at the Roxy Music studio with guitarist Phil Manzanera as producer, but the tracks never got released.

The black-and-white music video for "Rangoon Moon" became a cult clip in Europe and received airplay on VH1 in the United States.

Two years later, Double became known worldwide with their first hit single, "The Captain of Her Heart" from their first album, Blue, a best-seller that has been released in more than fifty countries.

In 1987, Kurt Maloo and Felix Haug recorded their second and last album, Dou3le, visualized best in the performance of the legendary Swiss mime group Mummenschanz in the award-winning music video for their song "Devils Ball", featuring Herb Alpert on trumpet.

Maloo continued his career solo again and released, under his own name, Single (1990), Soul & Echo (1995), Loopy Avenue (2006), Summer of Better Times (2009) and "What About (2014)".