Shane Richie's drinking caused the breakdown of his marriage to Coleen Nolan.
The "EastEnders" star - who was married to the "Loose Women" panelist from 1990 to 1999 and has two sons, Shane Jr., 29, and Jake, 25, with her - admits his boozing spiralled out of control when his ego had "taken over" and he regrets his wild partying now.
He said: "I lost my first wife through my drinking. A bottle of Jack [Daniel's] and I was off...
"By 1996 my ego had taken over. I was getting a police escort to nightclubs. I'd be thinking, I'm 30, I've got bad skin but all these girls are screaming for me outside.
"It went to my head and I was a bit out of control.
"I'd just had a Daz ad where they paid me a load of money and I thought I was sorted for life, that it was going to last for ever. I believed the hype and I do regret that now.
"I was lying to myself about the drinking and the women, thinking I was pulling the wool over the public's eyes. I'd be on TV advocating monogamy (on his marital game show "Love Me Do") while I was having an affair, for God's sake."
The 53-year-old actor-turned-singer - who also has children Mackenzie, 11, Lolita, nine, and Romany-Skye, six, with current wife Christie Goddard - admitted it was "tough" reflecting on his alcohol issues in new song "The Bottle's Not Your Friend".
He said: "It was tough to write. It's pretty personal. "It won't keep you warm and it won't have your back in a fight." That's what it is about."
Meanwhile, Shane is a big fan of British TV but is shocked by some current programming.
He told Event magazine: "Have you seen "Naked Attraction"? It's "Blind Date" with your c**k out. What Cilla would've made of it, I don't know but that's what you're up against now, so to speak."