Zayn Malik was set to perform at the 2016 CapitalFM Summertime Ball in London, England but has pulled out after suffering from the ?worst anxiety? of his career. Just hours before the concert, he announced that he was forced to cancel his performance. He wrote he suffers from anxiety from live performances and the gravity of this performance got the better of him. The former One Direction singer flew into London on Friday night, where he was last seen leaving his girlfriend Gigi Hadid?s apartment in New York City.