Singer-songwriter Robbie Williams said he spent entire summer season feeling "isolated" and struggling to connect with people.
The 42-year-old star, who has two kids with wife Ayda Field, has revealed that he was gripped by depression, reported Femalefirst.
"I had a really weird summer. Just couldn't connect with anybody, apart from my wife.
"I didn't know how to talk to anybody, even people who are with me every day. I was isolated, in my head. It was troublesome and sad. Then I tried this anti-depressant and things have changed. The demons are quiet," he said.
The "Party Like a Russian" hitmaker, who has previously battled addictions to drugs and alcohol, has now decided that he "definitely" won't do it again.
"I definitely can't drink. I definitely can't do coke. I can't do ecstasy. And I don't fancy heroin. But maybe there's a once-a-year special voucher that I get for good behaviour. But not for any of those things," he said.