Neil Young
Neil Young won't be voting for Donald Trump.Reuters

If brand new US GOP presidential candidate Donald Trump thinks he's Rockin' in the Free World, he's not. That's the word from rocker Neil Young who wrote the song that the Donald has apparently tried to claim as his political anthem.

Trump had the song blaring in the background when he announced at Trump Tower that he's a candidate, and an angry Young has ordered Trump to stop, just stop, using his song.

"Donald Trump was not authorised to use Rockin' in the Free World in his presidential candidacy announcement," Young's long-time agent Elliot Roberts tells the Los Angeles Times. "Neil Young, a Canadian citizen, is a supporter of Bernie Sanders for president of the United States of America."

Sanders, a US senator from Vermont and self-described Democratic socialist, is running to be the Democratic Party pick for president.

It's probably a good idea for Trump to pick a different anthem. The song was an odd choice to begin with, notes the Hill. The anti-capitalist, anti-Republican 1989 song on Young's Freedom album sharply criticises American policy. It also mocks the "points of light" and "kinder, gentler" society that then GOP president George HW Bush boasted of in America. "We got a thousand points of light for the homeless man," Young sings in the song. "We got a kinder, gentler machine-gun hand."

Roberts said he contacted the Trump camp about ceasing and desisting. There's been no immediate response from Trump.