The estate of the late soul singer Isaac Hayes is moving forward in their lawsuit against Donald Trump for using a song co-written by the artist. “The Federal Court has granted our request for an Emergency Hearing to secure injunctive relief,” the late singer’s son, Isaac Hayes III, wrote on X Friday. According to Hayes III, Trump himself will have to appear in court in September. The lawsuit was originally filed earlier this month and sought $3 million for the former president’s campaign’s unauthorized use of “Hold On, I’m Coming,” a 1960s song originally performed by duo Sam & Dave, more than 100 times. Prior to the filing, the Trump campaign was asked to discontinue the use of the song, but things came to a head on August 10, the anniversary of the singer’s 2008 death, when Trump used it again at a Montana rally. “Donald Trump represents the worst in integrity and class with his disrespect and sexual abuse of Women and racist rhetoric. We will now deal with this very swiftly,” Hayes III wrote on X.