<Tr> <Th_colspan="2"> Music video </Th> </Tr> <Tr> <Td_colspan="2"> "On the Loose" on YouTube </Td> </Tr> <P> "On the Loose" is a song recorded by Irish singer and songwriter Niall Horan from his debut studio album Flicker . It was written by Horan, John Ryan and its producer Julian Bunetta . The song was released to the US Mainstream Top 40 radio on 20 February 2018 as the album's fourth single . An alternate version was released on 16 February 2018 . </P> <P> Horan debuted the song on 13 May 2017 during his performance at Channel 93.3's Summer Kick Off concert in San Diego . On 29 May 2017, Horan performed on The Today Show's Citi Concert Series, closing the show with a live TV debut of "On the Loose". </P>

Who wrote on the loose to climb a mountain