Kiefer Sutherland lost his "dignity" in jail.
The 24 actor - who spent 48 days in prison in December 2007 after pleading no contest following his fourth arrest for driving under the influence (DUI) - admits he has done "stupid" stuff in the past, but admires the way late country singer Johnny Cash was able to write about life behind bars.
And Kiefer - who has penned a country solo album, Down in a Hole with friend Jude Cole - has tried to pay "homage" to the Ring of Fire hitmaker with his own music.
He said: "Johnny Cash wrote about men in prison and he managed to do that with a kind of dignity that I always thought was incredible.
"I've never been to prison. . . I have gone to jail a few times in my life for doing some incredibly stupid stuff and I can tell you, the first thing you lose when you walk through those doors is your dignity. I always really appreciated [Cash] for that. Jude and I wanted to write a song that was an homage to that writing."
The 49-year-old star has been writing music for years but was always aware of the pressure of being seen as an actor trying to launch a singing career.
But Kiefer no longer "gives a s**t" about people's perceptions, even if he expects people to go to his gigs initially just to see "a crash".
He told Rolling Stone Country: I've always likened it to a NASCAR race. People say they want to see a good race, and that's bulls**t. You want to see a crash! But if no crash, then maybe you settle for a good race. But I get it, trust me.
"There is a reason I waited until now: Now, I just don't give a s**t.
"Fifteen years ago, it wouldn't have been possible. Jude really had confidence in the way he was making the songs sound, and I couldn't really argue with him. But it was still really five or six songs in until I acquiesced and said, 'OK, I want to do this.'
"I had to have that come-to-Jesus moment because, trust me, an actor doing music makes my eyes roll in the back of my head, too.
"So I can't blame anyone for thinking that, and that's why we're prepared to go one bar at a time. It's the most constructive thing I've ever done in a bar, so it's working out.
- Bang! Showbiz