Sir Paul McCartney has written a song about U.S. President Donald Trump.

The Beatles legend revealed the news while meeting with students at the Liverpool Institute for Performing Arts, a college he co-founded in his English hometown.

According to the Liverpool Echo, the 75-year-old told his captive audience about the song, but did not elaborate on whether the tune was in favour of or against the controversial Republican leader.

“Sometimes the situation in the world is so crazy, that you’ve got to address it,” he shared.

He might have given a clue to the song’s likely angle, though, after recently telling Britain’s Daily Telegraph, “He’s (Trump) unleashed the ugly side of America. People feel like they have got a free pass to be, if not violent, at least antagonistic towards people of a different colour or a different race. I think we all thought we’d got past that a long time ago.”

During his college visit, McCartney was also asked his thoughts on whether new artists entering the industry are having a tougher time being heard because there are so many different music sharing platforms.

“I’m not sure it’s more difficult, ‘cause you still have to have a good song,” he reasoned.

Meanwhile, the Let it Be star is busy working on his forthcoming album, the follow-up to 2013’s New, with top producer Greg Kurstin, who has also laid down tracks lately for the likes of Adele, Sia and Kelly Clarkson. McCartney did not confirm whether the new Trump tune will appear on the album.

He has also teamed up with his former Beatles colleague, Ringo Starr, for the track We’re On The Road Again, for the drummer’s next solo album, Give More Love. The project, due for release in September, will be Starr’s first since 2015’s Postcards from Paradise.