"It's always inspiring to perform in front of a diverse audience, an audience that reflects what we see on our streets, and so that's really exciting," Kanneh-Mason told "Good Morning America."
The 19-year-old, who played with the orchestra during the signing of the register, is also the winner of 2016's BBC Young Musician award, Kensington Palace reports.
"Last June, Prince Harry saw Sheku play at an event in London in support of the work of Antiguan charity the Halo Foundation," the Palace tweeted.
Kanneh-Mason resides in the United Kingdom and this year, his debut album, "Inspiration," hit number 1 on the U.K. classical chart, according to his Twitter bio.
Last Month, the musician gushed about how excited he was to perform at Harry and Markle's wedding.
"I was bowled over when Ms Markle called me to ask if I would play during the ceremony, and of course I immediately said yes!!!" Kanneh-Mason wrote. "What a privilege. I can’t wait!"
Kannah-Mason grew up one of seven children and is currently a full-time scholarship student at The Associated Board of the Royal Schools of Music, according to his website. He began learning the cello when he was 6 years old.