<Ul> <Li> The X Factor (9 October 2016) </Li> <Li> Sunrise (22 November 2016) </Li> <Li> Idol (2 December 2016) </Li> <Li> The Late Late Show with James Corden (3 January 2017) </Li> <Li> The Today Show (5 January 2017) </Li> <Li> The Tonight Show Starring Jimmy Fallon (25 April 2017) </Li> </Ul> <Li> The X Factor (9 October 2016) </Li> <Li> Sunrise (22 November 2016) </Li> <Li> Idol (2 December 2016) </Li>

Who wrote the song say you wont let go