At 17, he won the BBC's Young Musician Competition. Then he performed at the Royal Wedding of Prince Harry and Meghan Markle. He's also appeared on 'Britain's Got Talent' with his six musical siblings. Yet, cellist Sheku Kanneh-Mason, who is just 20 years old and still studies at the Royal Academy of Music, is grounded in the music he loves. He's just released his second solo recording, featuring Elgar's Cello Concerto in E minor and other pieces that are close to his heart.