Dolly Parton's sister had a fierce response to Kid Rock's claim that unattractive, 'deranged' liberal women are to blame for America's low birth rates.

Stella Parton, 76, the country icon's younger sister, called out Kid Rock for the bizarre assertion he made while chatting with Fox News' Jesse Walters.

The 54-year-old 'Cowboy' singer told Fox Thursday night: 'I was just watching your clips, and you know, we have this low birth rate in America, and it all made sense.

'It just hit me right now because who's gonna sleep with these ugly a**, broke, crazy, deranged, TDS (Trump derangement syndrome) liberal women?'

He added that liberal rallies are made up of 'bunch of women that no guy wants to sleep with and a bunch of dudes that want to sleep with each other.'