The 33-year-old frontman was informed that Trump had chosen the tune to blare out at a recent rally, and took to Twitter on Tuesday night (June 23) to address the POTUS directly.
"Dear Trump Campaign, f**k you," he wrote. "You're not invited. Stop playing my song. No thanks, Brendon Urie, Panic! At The Disco & company."
Urie continued to urge his fans to vote in a bid to oust Trump from the White House in the upcoming election.
"Dear Everyone Else, Donald Trump represents nothing we stand for. The highest hope we have is voting this monster out in November. Please do your part," he wrote, alongside a link to HeadCount.org - an organisation which stages voter registration drives.
Urie isn't the only big name to ask Trump to refrain from playing his songs at his rallies - R.E.M., Pharrell Williams, Rihanna, Neil Young, Guns N' Roses, and The Rolling Stones just some of the other acts who have also objected to their music's use at Trump's events.