"9 (After Coachella)" is a song recorded by the Norwegian producer Cashmere Cat featuring the Danish singer MØ and the British producer Sophie. It was released on 30 March 2017 as the fourth single from Cashmere Cat's debut studio album, 9,[1][2] along with a lyric video.[3] A music video was released on 25 April.[4] In 2021, Katie Bain of Billboard named it one of Sophie's best songs, productions or features.[5]