"There was nothing 'happy' about the tragedy."
Pharrell Williams has reportedly threatened President Donald Trump with legal action after he used Happy at a rally on the same day 11 people were killed in a mass shooting in Pittsburgh.
According to Hollywood Reporter, Williams issued a cease and desist to Trump, stating he did not give permission for him to use the song and that its use constitutes both copyright and trademark infringement.
"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," the letter reads.
"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."
In the past, Steven Tyler has protested the use of Aerosmith's music at Trump events, while Queen, REM and more have also issued complaints.