The Grammy-award winning musician made his views on the Republican candidate loud and clear on Twitter Friday night, calling him a “Racist.”

The exchange drew widespread attention, prompting Legend to wonder out loud on Saturday what the big deal was.

As cameras captured interviews from Friday’s rally, Trump Jr. said on Twitter that five students who were asked why they were protesting “Couldn’t even answer.”

In contrast, “Trump supporters were articulate” while “The antis could barely speak and had no answers.”

In response, Legend offered this assessment of the demonstrators’ motivations: “I think they were protesting your racist father. This isn’t complicated.”

Trump Jr. took note of Legend’s comment and responded “Here we go again. That can’t be the answer for everything you don’t like. That’s why the country is so divided.”

“It’s just the answer when racist racists are saying racist s-t and are endorsed by the KKK,” an apparent reference to Ku Klux Klan members who have showed up at Trump rallies and endorsed his candidacy.

As Trump supporters unleashed their social media fury at Legend, one Twitter user going by RedKneckHillBilly called Legend “Disgraceful” and said he had “No education.”

In response, Legend pointed out that he attended the same college as the Trumps, the University of Pennsylvania.