Singer had been expected to play a gig in Dubai during October
The singer left the 'X Factor' band last year
"It's about being happy to look a bit scruffy," says the former One Direction member
Singer pays homage to original theme song in new track
Singer left the boy band in March 2015 before releasing debut solo album 'Mind Of Mine'
Singer is "very sad to see society so fragmented"
The female-fronted remake of the classic movie will be in cinemas on July 15
Ex-1D star pulled out of Capital’s Summertime Ball in London
"I have suffered the worst anxiety of my career"
Taken from solo album 'Mind Of Mine'