The estate of the late singer Prince is objecting to the use of his song "Purple Rain" at President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's rally on Thursday night, saying the campaign had previously promised not to use Prince songs at activities.

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“The Prince Estate will never give permission to President Trump to use Prince’s songs," read a tweet from the official Prince account.

President Trump played Prince’s “Purple Rain” tonight at a campaign event in Minneapolis despite confirming a year ago that the campaign would not use Prince’s music. The Prince Estate will never give permission to President Trump to use Prince’s songs. pic.twitter.com/FuMUPzSWOe — Prince (@prince) October 10, 2019

The late singer's estate in 2018 told the president's campaign to stop using the song at rallies or other events.

Trump's campaign then agreed not to "use Prince's music in connection with its activities going forward," according to a letter shared by Prince's estate.

However, the song played Thursday night before a Trump rally in Minneapolis. The choice may have been because Prince was a Minneapolis native.

Playing Prince before a Trump rally in Minneapolis is sacrilege pic.twitter.com/NPyrLqGWTJ — Aaron Rupar (@atrupar) October 10, 2019

Prince was progressive in his politics while alive, playing a concert for former President Obama and supporting the Black Lives Matter movement at the 2015 Grammys.