But Barr said she caused lasting damage to her public image when she sang the National Anthem at a San Diego Padres game in 1990. It was the eve of the first Gulf War, and America was in a patriotic fervor at the time.
Before the game started, Barr gave a screaming, off-pitch rendition of "The Star Spangled Banner," then grabbed her crotch, spat on the ground and walked off the field. Time magazine later called it the worst rendition of "The Star Spangled Banner" ever.
"It was horrifying," she said of her performance now. "I knew I had started too high and about the fifth note in, I had nowhere to go. I thought well, at least I'll try to make it funny, and you know I tried to make it funny, just by screaming."
The crowd was not amused, and Barr said she knew it. She recalled people shaking their fists and throwing beer cans at her as she walked off.
Even President George H.W. Bush called it a disgrace.
Barr said the incident almost cost her everything she had worked for. She also writes in the book that the fallout from the "Roseanthem" was a huge factor in the breakup of her marriage to Arnold.
Now, she said, life is much "calmer" on her farm in Hawaii, but that doesn't mean she's through with show business.
She recently recorded a DVD of children's songs with her boyfriend, musician Johnny Argent. She also hinted at a reality TV show, similar to "Sarah Palin's Alaska," set in "Roseanne's Hawaii."
And, of course, she's still out there speaking her mind.
"The truth is a shocking thing," she said. "The truth is everybody, really, seriously, should take a big fat look at [themselves] before [they] go around telling everybody else what's wrong with them."