Justin Bieber shared a prayer and a message against racism on Sunday, after the Buffalo, NY leg of his world tour.

The 28-year-old musician posted a minute-long video clip as he prayed in a huddle with his team on Saturday night, after a white gunman took the lives of ten Black people at a Buffalo grocery store.

Standing in solidarity: Justin Bieber shared a prayer and a message against racism on Sunday, ahead of the Buffalo, NY leg of his world tour.

Another post showed him opening his show by acknowledging the racist attack as he said, 'What's up Buffalo?' to a screaming crowd.

'To the people who couldn’t stay silent to honor the lives that were so tragically lost, I urge you to ask yourself why?' he wrote in the caption of the post in which he shared the clip?

Speaking up: Justin Bieber appeared on Instagram with a message for his 235 million followers in the wake of Saturday's Buffalo, New York shooting.

Earlier in the day he reposted a message from music producer Harv, who's part of Bieber's camp.

The original post from Harv - full name Bernard Harvey - was shared to his Instagram Story with white font against a black background?

Repost: The 28-year-old pop star reposted a message from music producer Harv, who's part of Bieber's camp.

It's unclear who, but someone else added more thoughts to the original message, and Bieber shared it to his Instagram profile.

A post shared by HARV (@harv)

A teenaged gunman who allegedly murdered ten people at a Buffalo supermarket planned the attack for months before he drove for three hours to carry out the vile ambush that was believed to be motivated by his hatred of Black people.