Zayn Malik cancelled his appearance at the Capital Summertime Ball at the Wembley Stadium in London on Saturday due to anxiety, he shared on Twitter.

"To all those people who have been waiting to see me perform at the Capital Summertime Ball today," the singer wrote in a lengthy Twitter message. "I flew into the UK last night to appear in my home country in front of my family, friends, and most importantly my UK fans. Unfortunately my anxiety that has haunted me throughout the last few months around live performances has gotten the better of me … with the magnitude of the event, I have suffered the worst anxiety of my career. I cannot apologize enough but I want to be honest with everyone who has patiently waited to see me, I promise I will do my best to make this up to everybody I've let down today. I know those who suffer anxiety will understand. And I hope those who don't can empathize with my situation."

Interestingly enough, former fiancee Perrie Edwards and her band, Little Mix, performed at the show. Lately the former One Direction star's love life has been a bit of a roller coaster, having split from girlfriend Gigi Hadid, only to get back together about a week later. The two were photographed holding hands in New York City on Friday night, so it appears as though Zayn is hanging in there.