A British musician used the BRIT Awards stage as a means to protest against racism in the nation, including calling Prime Minister Boris Johnson a racist. 

Johnson has spent days refusing to respond to accusations of racism after hiring an aide who advocated for enforced contraception and claimed Black people have lower IQs than white people, reports The Independent. The controversy gained new life on Tuesday night when musician Dave performed his song, "Black" and openly called Johnson a racist during the BRIT Awards.

"It is racist, whether or not it feels racist. The truth is, our prime minister's a real racist," Dave rapped as he played the piano.

While Dave's address of the prime minister was a powerful statement in and of itself, "Black" is a moving testament all on its own. Among the lyrics to the pro-Black song are "Black is like the sweetest f**kin' flavor, here's a taste of it/But black is all I know, there ain't a thing that I would change in it" and "Black is not divisive, they been lyin' and I hate the s**t/Black has never been a competition, we don't make this s**t."

Dave, who won BRIT Album of the Year for his debut album Psychodrama, also called out the country's press for their continual mistreatment of British royal Meghan Markle.

"If you don't want to get it then you're never gonna get it. How the news treats Kate, versus how they treated Meghan," he said, also taking a moment to speak about the Jamaican and Caribbean U.K. residents being deported as well as the victims of the Grenfell fire. 

Johnson has been embroiled in controversy since his landslide election in December and has faced criticism for his decision to hire Andrew Sabisky, a self-proclaimed researcher who wrote a blog post claiming Black people were more likely to be "intellectually disabled" than other races. 

In another post, Sabisky wrote: “If the mean black American IQ is (best estimate based on a century's worth of data) around 85, as compared to a mean white American IQ of 100, then if IQ is normally distributed, you will see a far greater percentage of blacks than whites in the range of IQs 75 or below, at which point we are close to the typical boundary for mild mental retardation.”

Because of Johnson's wide margin of victory and large majority within Parliament, he and his advisers have refused to respond to the controversy, declining to even to say whether the prime minister agreed with theories about eugenics or racial superiority. 

Sabisky decided to resign this week due to what he said was "media hysteria about my old stuff online," reports The New York Times. But the situation highlighted Johnson's own long history of racism. 

In past columns for British newspapers, Johnson also called Black people “piccaninnies,” and said people of African descent have “watermelon smiles.”

On Wednesday morning, Johnson's Home Secretary Priti Patel responded to Dave, telling Sky News that the prime minister was not a racist.

The statement did little to quell outrage over Johnson's response to the controversy, and multiple Black British lawmakers have spoken up about his views on minorities.

"For too long, Boris Johnson has got away with being the jolly japester. But his spokesman refusing, more than 10 times, to give Johnson’s views on the intelligence of black people is not funny at all," British MP Dianne Abbott wrote on Twitter.

Labour Party chairman Ian Lavery told The Guardian Johnson's comments were disgusting.

“It is disgusting that not only has No 10 failed to condemn Andrew Sabisky’s appalling comments but also seems to have endorsed the idea that white people are more intelligent than black people. Boris Johnson should have the backbone to make a statement in his own words on why he has made this appointment, whether he stands by it, and his own views on the subject of eugenics,” he said.

Outspoken British politician David Lammy also had harsh criticism for the prime minister.

"Hiring eugenicists. Refusing to say whether black people are mentally inferior. Describing us as 'piccaninnies'. Boris Johnson, do you know how offensive this is to black Britons?" Lammy wrote. "If you can't stand up for the entire nation, you should not be Prime Minister."