Double has been played on NTS over 20 times, featured on 23 episodes and was first played on 29 September 2014.

At least two musical acts are known as Double:

Double is the stage name of Japanese R&B singer Takako Hirasawa. The act originally consisted of Hirasawa and her sister, Sachiko. Their highest-charting single as a duo was “Shake,” which reached #21 in Japan. Following Sachiko’s death in May 1999, Takako continued as a solo artist under the name Double. She is recognized for introducing American-style R&B to the Japanese market and is noted for presenting a sexualized image, which is relatively uncommon among Japanese artists.

Double was a Swiss duo consisting of Felix Haug (drums and keyboards) and Kurt Maloo (guitar and vocals). Previously part of a trio called Ping Pong, they achieved international success in 1986 with the ballad “The Captain of Her Heart,” which reached #16 on the US pop chart, #4 on the US Adult Contemporary chart, #8 in the UK, and #17 in Canada. The song appeared on their debut album "Blue" and remained their most notable hit. Their follow-up album, "Dou3le" (1987), featured the lead single “Devils Ball,” which peaked at #71 in the UK and did not chart in the US. The duo split in 1989. Felix Haug passed away from a heart attack in 2004.