BORIS Johnson is not a Teenage Dirtbag – he’s way worse, according to the man that wrote the hit song.

Wheatus frontman Brendan B Brown has been scathing in his criticism of Brexit, Johnson and Westminster – and said the UK he knew from when he first toured here had “ripped itself apart”.

The US rocker revealed to The National that he supports Scottish independence amid what he called the “dismissive rudeness” from Westminster against Scotland.

The New Yorker is no stranger to politics and the support for indy makes sense, as he made headlines in 2019 for appearing at an independence march in Glasgow following a gig in the city’s iconic King Tut’s.

READ MORE: You'll never guess which US rock stars showed up for the Yes march

And he's appeared on the BBC’s Politics Live to discuss the fears young people in the UK have over Brexit and their future opportunities to move freely throughout the 27-nation bloc.

The singer told The National of his dismay to see what he felt was the downfall of the UK – a Union he used to admire.

Asked if he supports Scottish independence, Brown said: “I do. As much as I can as an American. I feel as though just the sheer dismissive rudeness of London parliamentary culture towards Scotland or Wales or Northern Ireland, they're endangering lives, willy nilly.

“So I feel like any of the countries of the Union would need to do what they can to ensure their own security and the wellbeing of their citizens.”

The National:

Wheatus frontman Brendan B Brown spoke to The National from New York City

After the hit of Teenage Dirtbag, which was certified triple platinum, the band toured the world.

Coming to the UK, Brown said it was the first place he’d been to that had “millennia of culture”.

“It was amazing to us as Americans, especially New Yorkers to see the millennia, 1000s of years of culture, and the stability of it, and the tradition of it, and the courtesy of it towards one another," he said.

“Things never quite reached the boiling point like they do in the States. We're still 50 little countries that are still in a cold war with each other.

“But your system seemed far more stable to me, and baked in, and time tested. And I could never have guessed that 15 years later, you'd rip yourselves apart like this. And now that we're 21 years out from the first time that we came, I'm still much more worried than I was."

He said while he initially thought Brexit would come and go, he added that the UK’s political system seems to “not be able to accommodate this new culture of, well, what if we just lie about everything and see how that goes?”

The US musician, who has an Irish passport, says while he isn’t usually a political person, he feels “obligated” to let people know where he stands amid the turbulent state of the world.

Brown has been particularly vocal about Brexit, having come into direct contact with its “devastating” consequences as a touring musician.

The National: Conservative party leadership contender Boris Johnson poses for a photo at the Wight Shipyard Company at Venture Quay during a visit to the Isle of Wight. PRESS ASSOCIATION Photo. Picture date: Thursday June 27, 2019. See PA story POLITICS Tories. Photo

Boris Johnson is said to be worse than a Teenage Dirtbag

“We do an enormous amount of paperwork, dotting eyes and crossing Ts with serial numbers, every little piece of gear back here,” Brown said. “If it comes with me to the United Kingdom to do 45 dates worth of pub touring, we have to have every little thing noted on a ledger.

“We go through hell to get that right to make sure that we are compliant guests. And the fact that you've separated yourselves - not necessarily Scotland - but the Union has separated itself from the European Union, I don't think anybody understands what that's going to do to industries, fully.

“The UK was arguably the greatest exporter of music culture in history. We literally call it the British Invasion, you know, and with glee, we referred to it as the British Invasion, and we fought a war against King George to be free. But the way it stands now, if an up and coming band from outside of Liverpool or Dundee or any of the places … if they had to come out of Wigan, and let's say their first single went wild in Austria, right? They can't get there.”

The National:

Brendan B Brown said he supported Scotland leaving the UK

Brown did not have nice words to say about the Prime Minister: “I think that he is performing - he's a very good performer – and he’d have been as fine a comedian as he had been a politician, maybe even better.

“I think that he is has ridden a wave of bluster and jingoism and sort of anti-immigrant sentiment into a place that is easy to blame immigrants and poor people.”

Asked whether he thought the Prime Minister was a Teenage Dirtbag, Brown laughed before replying: “No, I don’t – not in the sense that I know, having written the song.”

READ MORE: Five celebrities you might not expect to support Scottish independence

But the US rocker didn’t let Johnson off the hook, he said Johnson is worse than the dirtbag featured in the 2000 smash hit.

“I don't see this sort of ruthless, cocksure aggression in the original dirtbag character,” he explained.

“The dirtbag might have faith in themselves but it's a lonely faith, and it isn't a confident faith.

“[It was] ’it's okay to be yourself, but you're gonna have to be lonely and do your thing’. And it seems that Boris's version is just that he never cared much about what other people were going through, and therefore able to ignore it because of class and luck and timing, and money.

“And I think that that's not what the real dirtbag is. The real dirtbag is somebody who doesn't have those positions, isn't born with that silver spoon and isn't born on third base thinking they hit a home run.”