Zayn Malik stunned One Direction fans in 2015 when he announced his sudden departure from the band – the first domino in the band's eventual breakup a year later. Now, almost a decade later, he stunned fans by performing a One Direction song at one of his concerts.

Andrew Benge/Getty Images It’s been 10 years since Zayn Malik announced his One Direction exit, and he celebrated the anniversary in a heartfelt way. During his Stairway to the Sky tour concert in Mexico City on Tuesday,