LOONA and producer Ryan Jhun have revealed the preview of their upcoming collaboration single 'Not Friends'.

The producer, his label Big Ocean ENM, and LOONA members HeeJin, Kim Lip, JinSoul, and Yvesare working together for the second single of his ongoing music project 'MAXIS'. The below clip featuring the album cover teaser gives fans an audio teaser of their collaboration.

LOONA x Ryan Jhun's "Not Friends" drops on September 3 KST. What do you think of the preview so far?