India, Oct. 9 -- In what's being hailed as one of the most unexpected crossovers of the year, BLACKPINK's oldest member, Jisoo and former One Direction star Zayn Malik just sent fans into a collective meltdown with the teaser for their new single, Eyes Closed.

On Monday (Oct 6), Jisoo set the internet ablaze when she posted a cryptic teaser on social media - a moody silhouette of a man standing behind her, with the words "EYESCLOSED" sprawled across the frame. The caption simply read, "A duet is near." A follow-up post revealed the male figure more clearly, confirming what fans had been speculating all along: Zayn Malik. The caption teased, "two voices, one orbit. coming soon."

The teaser MV, which dropped shortly after, shows fleeting ...