David Crosby jumped the gun. He wrote his autobiography too soon.

Long Time Gone, published in 1988, details the moustachioed singer's struggles with cocaine, heroin, booze and other abusive lifestyle practices. In the triumvirate of sex and drugs and rock 'n' roll, if you want sex, look unto Mick Jagger. You want drugs, David Crosby is your guy. Was, anyway.

On the phone to talk about Sunday's show with partners Stephen Stills and Graham Nash at Skyreach Centre, Crosby recalls, "I thought, 'Hmm, I survived this life and I've gone through a year in prison and now I'm straight. God, what an interesting life. I think I'll write about it.' No sooner than I do that they're telling me, 'You're dying; your wife is pregnant; the IRS wants your house; oops, the earthquake knocked your house down; oh, and you have a long-lost son and he's a musician; and you're a grandfather' - all in the same year. That was 1994. So obviously I have to write a part two."

Working title: The S--- I Didn't Tell You the First Time. Which would have to include donating sperm to Julie Cypher - his wife's idea - so Julie and partner Melissa Etheridge could have kids. The lesbian power couple has since split up, but they all remain close. Crosby's artificially inseminated kids, now four and six, are quite musically inclined, Crosby reports, each sporting luxuriant moustaches. Kidding. Oh, yeah, and the 61-year-old singer is on his second liver. While what doesn't kill you can make you stronger, what doesn't kill you now can also kill you later. Careful with that liver, man.

While his immune system had to be flattened completely for the transplant in late 1994, Crosby says he now only has to take a small maintenance dose of immunosuppressant and leads a normal life, normal in a healthy way, not a rock 'n' roll way.

"The balancing act is working pretty well. I'm eight years down the line and I've had three children since then," he laughs, "so it's working fine."

Crosby is in a great mood, more than willing to talk about the things his publicist warned me not to talk about - sperm donations, the liver and so on. It might have something to do with the fact Crosby's wife and eight-year-old son Django are in the next hotel room, on tour with him for the summer "because I'd get too lonely" otherwise.

As for loving the one he's with in lieu of being with the one he loves, Crosby has it both ways. Anyway, that line is Stephen Stills's territory - another story entirely.

Crosby claims to remember "pretty well all" of what happened during the '60s despite having been there. He played Woodstock and was involved in various socially activist causes of the time - which, as you can imagine, have been rekindled in light of recent events. He subscribes to the old saying that evil thrives when enough good people stand by and do nothing. To put it another way, U.S. president George W. Bush and his minions have become drunk on power, thought they were above the law, made mistakes and lied to the American people - and the American people "don't like that," Crosby says. "The support for the president and for his policies has been eroding."

He goes on, "Politics are so contentious and so depressing because the bad guys win and that makes it difficult," he says. "But we've found out that if you just go and hide in your house and say you're not political, that somebody else can deal with it, that creates a power vacuum and that pulls people into politics who are greedy and unprincipled and looking to manipulate power. So we have to stay involved. Much as I don't like it, politics is what's going to happen to you tomorrow. So we have to stay involved and pay attention, because that's what democracy depends on: involvement and being informed."

Coming across more like a libertarian than a Democrat or Republican - basically one and the same anyway - Crosby even wrote a new song called They Want It All, inspired by the Enron scandal.

"Those guys shouldn't be going free," he says. "I guess they were the largest single contributors to George's campaign and they're getting their money's worth. That's not right. And scapegoating Martha Stewart - that was funny. How blatant does it have to get?

"People seem to be liking the song. They cheered when we did it."

And yes, they will be doing the old ones at the show, too - Wooden Ships, Almost Cut My Hair, Our House, Carry On and so on. Not everyone has such a clear memory of the '60s like Crosby. Sometimes a little music helps bring it back.

Tickets to Crosby, Stills and Nash are $65 or $50 and on sale at Ticketmaster (451-8000).