LE SSERAFIM‘s Yunjin and soloist Crush.Released on January 17, ‘Yes or No’ features vocals from LE SSERAFIM’s Yunjin and K-R&B singer Crush. The song also notably samples K-pop girl group Brown Eyed Girls’ 2008 track ‘Love’.‘Yes or No’ features lyrics co-written by Yunjin, GroovyRoom and Kim Eana, the latter of whom wrote ‘Love’.