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Former Ivy League classmates John Legend and Donald Trump Jr are embroiled in a Twitter war after the musician called his father a racist.
The spat began after Trump Jr tweeted about a protest that turned violent before his father's Chicago rally yesterday.
'Ha 5 students when asked why there were protesting couldn't even answer,' Trump's eldest child wrote. 'The participation medal/micro aggression generation is pretty sad!'
Legend was quick to respond to Trump Jr, who he attended the University of Pennsylvania.
'I think they were protesting your racist father,' Legend wrote. 'This isn't complicated.'
'Here we go again,' Trump Jr responded. 'That can't be the answer for everything you don't like.'
'That's why the country is so divided now!' he added.
Legend hit back: 'No. It's just the answer when racist racists are saying racist s*** and are endorsed by the KKK.'
One Trump supporter then decided to insert himself in the conversation and hit back at Legend without taking a look at his Wikipedia page.
'Is John Legend that disgraceful?' wrote a Twitter user who calls himself RedKneckHillBilly.
The comment got a direct response from Legend, who was happy to point out that he graduated from the same university as Donald Trump Jr and his father.
Legend wasn't the only celebrity to criticize Trump following Chicago's violent night.
The musician graduated magna cum laude from the University of Pennsylvania in 1999 with a degree in English, concentrating in African American Literature and Culture.
Donald Trump Jr graduated from the university's Wharton School with a BS in Finance, Real Estate and Marketing in 2000, according to his LinkedIn page.
Legend wasn't the only musician to criticize Trump following Chicago's night of violence.
He retweeted a message from Josh Groban, who wrote: 'When Trump says "I'd hate for anyone to get hurt" I can just see his miniature orange fingers crossed behind his back.'
And as word spread of Legend's comments regarding Trump, he tweeted: 'This is not controversial. This is not news. The sky is blue.'
Friday night saw unprecedented scenes inside the University of Illinois at Chicago Pavilion between an anti-Trump mob and Chicagoans who came to hear the Republican front-runner speak.
Chicago police say two officers were injured and taken to the hospital when supporters during the clashed with protesters Friday after Donald Trump abruptly canceled a campaign rally.
Around 10,000 protesters were to said to have RSVP'd to the event.