Pearl Jam frontman Eddie Vedder made an apparent dig at Donald Trump after the president criticized fellow musician Bruce Springsteen.

During Pearl Jam’s Sunday night show in Pittsburgh, frontman Eddie Vedder stepped up to the mic and let his thoughts be known. He never called Trump by name, but he made it clear how he felt about the situation and about Springsteen.

Donald Trump wasn’t happy to hear that Bruce Springsteen hasn’t backed down from calling him an “unfit president” as he performs in Europe, so he went on another rant on social media overnight Sunday, demanding a “major” investigation be launched against the rock ‘n’ roll legend for singing at a Kamala Harris rally in October.