Legendary Beatle Paul McCartney has revealed he had climate-change deniers such as President Donald Trump in mind when writing one particular song on his new solo album, “Egypt Station.”

The track, titled “Despite Repeated Warnings,” contains lyrics such as “despite repeated warnings of dangers up ahead, the captain won’t be listening to what’s been said,” and “those who shout the loudest, may not always be the smartest.”

McCartney told BBC Music’s Mark Savage in an interview published online Thursday that denying climate change was “the most stupid thing ever.”

“So I just wanted to make a song that would basically say, you know, occasionally, we’ve got a mad captain sailing this boat we’re all on and he is just going to take us to the iceberg,” he added.

Asked if the “mad captain” was “anyone in particular,” McCartney responded:

“Well I mean, obviously it’s Trump but I don’t get too involved because there’s plenty of them about. He’s not the only one.”

McCartney — who earlier this week revealed his and John Lennon’s group masturbation habits in a GQ interview ― also talked about not being recognized on public transport and how pop star Taylor Swift inspired another song on his album.

Check out the BBC interview with McCartney here, and listen to “Despite Repeated Warnings” below: