Billy Ray Cyrus branded Firerose "dumb" and "selfish" in an expletive-filled rant.

The 'Achy Breaky Heart' hitmaker's estranged wife has accused the 62-year-old singer of subjecting her to months of "extreme verbal, emotional and psychological abuse" and a new audio tape seems to back up her allegations as he berated her during a row that appeared to be related to his timings for a performance.

Audio obtained by DailyMail.com and Us Weekly magazine hears Billy say: “I needed to leave two hours ago."

Firerose replied: "No you didn’t, you can still leave.”

Her spouse then yelled: “Get the f*** out of here. I had to go when I was ready to go. If you had just shut the f–k up …”

The Australian singer then urged the country star to "please stop screaming" at her, which only further infuriated him.

He ranted in response: “If you would’ve left it the f*** alone. If you would’ve left it alone when I told you, it’s done. Now I’m really f****** p*****. You once again showed me you will not listen. I don’t know who the f*** you think you are but you will not f****** listen.

“This ain’t about your BRCA, this ain’t about your surgery, this ain’t about nothing. This is about you being a f****** selfish b****.”

The 'Some Gave All' singer then declared he didn't think his wife was "real smart".

He added: “I’ve changed my damn mind on that s***. What you are is a selfish b****.

“You cannot continue to walk all over me and think that I’m going to go out in public with your dumb a** and f****** have you do this s*** anywhere you want in front of whomever."

Firerose then asked if her spouse was referring to “screaming at me right now,” and he replied, “This would not be happening if you were to just shut your f****** mouth. Look what a f****** mess you’ve made. What a dumba** f****** thing to do.”

The 35-year-old beauty insisted she just wanted the country star to be "happy" but he retorted: “No. F*** you. F*** you. You know better than that. F****** idiot.”

Firerose previously claimed she found Billy Ray's rants "terrifying".

She told the New York Post newspaper's Page Six column last month: “He would rage at me, shout at me at the top of his lungs. He would terrify me, yelling, ‘You stupid dumb f****** b****, crazy w****.

"It was illogical and insane and terrifying.”

And after Billy Ray's lawyers made public a handwritten note allegedly from his estranged wife in which she begged for “a chance to make this right", Firerose insisted it didn't mean he hadn't been abusive.

She said: “He’s attempting to use my loving notes as proof that he could not have been abusing me because I love him. But it’s because you love them that you tolerate this behaviour.

Billy Ray has previously “vehemently” denied allegations that he was abusive toward Firerose and he himself is accusing her of abuse in his own court documents.