The Pillow Talk singer left the band last March, reported Digital Spy.
"I just knew it was my time. I knew I wanted to do something different and start expressing the way I felt about certain things," he said.
"I know that musicians are seen as one-sided people a lot of the time. But we do have other elements to us as well. I didn't feel good. Do you know what I mean? And if you don't feel good, you need to be able to express what it is that you are. I'm free at last," Zayn said.
The 23-year-old singer, however, is doing well in his solo career and is in a good space in personal life as well with girlfriend Gigi Hadid being by his side.
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