Oh Wonder are a London-based alt-pop duo consisting of Anthony West and Josephine Vander Gucht. Since releasing their debut album, they have seen international success with their alt-pop singles. Vander Gucht and West recorded and released one song a month for a year, starting in September 2014. All of the songs were released together as a self-titled debut album on 4 September 2015. On 14 July 2017, the duo released their second album, Ultralife. Both albums were entirely written, recorded, produced and mixed by the duo and have received cross-platform success.