Kate Boy are a Swedish synthpop duo from Stockholm. The group was founded by Kate Akhurst, from Australia, and Markus Dextegen, from Sweden. Former members Hampus Nordgren Hemlin and Oskar Engström made up Swedish production team Rocket Boy, along with Markus Dextegen. All members have participated in writing, producing and playing instruments. They released their debut studio album, One, in November 2015.