"On the Loose" is a song recorded by Irish singer-songwriter Niall Horan from his debut studio album Flicker.

[3] Horan debuted the song on 13 May 2017 during his performance at Channel 93.3's Summer Kick Off concert in San Diego.

The accompanying single artwork, illustrated by Kyler Martz, features a drawing of a woman holding a heart, surrounded by flowers, some of which have legs and eyes on them.

[7][8] An animated lyric video for the song was released on 12 February 2018, after Horan posted a 20-second teaser the day before.

[12] Christina Lee of Idolator wrote that the song "sounds like a cautionary tale", in comparison to "Slow Hands".