According to his social media, Pharrell Williams has sent Donald Trump a cease-and-desist letter after 45’s campaign played the hit song “Happy” during a rally.

Just hours after a madman opened fire at the Tree of Life Synagogue in Pittsburgh Trump played the hit song “Happy” during a rally. It was completely distasteful and rude. It shows where he truly stands as a prejudice President. Read on…

CelebNMusic247.com reports Pharrell Williams was outraged after heard word of what Donald Trump did so he quickly issued the heartless President a cease-and-desist letter.

Here is what Pharrell Williams attorney wrote to #45 in a letter obtained by the Hollywood Reporter.

On the day of the mass murder of 11 human beings at the hands of a deranged ‘nationalist,’ you played his song ‘Happy’ to a crowd at a political event in Indiana. There was nothing ‘happy’ about the tragedy inflicted upon our country on Saturday and no permission was granted for your use of this song for this purpose.

His attorney pointed out that he does not have permission to use the song, and is violating copyright laws.

Pharrell has not, and will not, grant you permission to publicly perform or otherwise broadcast or disseminate any of his music.

Trump decided not to cancel his rally in Indiana later that day and joked that he almost canceled because he had a “bad hair day.”

Meanwhile, T.I. praised Pharrell for firing off the cease-and-desist letter to Trump. The rapper took to Instagram to share his opinion on the move and channeled Denzel Washington ala “Training Day.”

He wrote:

My Ni–a’ – Denzel voice, Expected Nothing Less from Big Bro.

Williams joins a growing list of artists who have publicly refused to have their music associated with Trump, including the estate of Prince, Adele, the Rolling Stones, Neil Young, Tom Petty, and Elton John and Aerosmith singer Steven Tyler.