Speculation about his future reached fever pitch in the past week when Zayn Malik left the One Direction On The Road Again tour due to stress.
But fans' worst fears came true today when the heartthrob confirmed he had quit the band.
Read more: One Direction star Zayn Malik's shock split from boy band
They wasted no time in taking to Twitter to share their hysterical reactions, ranging from imploring their idol to change to his mind, to comparing his departure to a death. One distraught fan even insisting her world had "stopped turning".
As "#AlwaysInOurHeartsZaynMalik" and "#PleaseZaynBackForUs" trended worldwide on Twitter, both celebrities and Directioners inundated the micro-blogging site with their thoughts on the departure which has rocked the showbiz world.