The Kanneh-Mason children once agreed to go on “Britain’s Got Talent,” but only if they could perform real classical repertoire. “They wanted to be classical musicians and be really good at what they did,” recalls their mother, Kadie Kanneh-Mason. She says when it came to their career strategy, her children always called the shots. | 60 Minutes

The seven Kanneh-Mason siblings share a healthy rivalry over their choice of instruments. “[Cello is] objectively a better instrument,” laughs Sheku Kanneh-Mason to his brother, who plays violin. “You’re going to take that?” asks Jon Wertheim. “I think the violin is more popular. There’s more repertoire,” responds Braimah Kanneh-Mason. | 60 Minutes