READ MORE: Celebs who misbehaved at Buckingham Palace – stolen loo rolls and spliff smokingThe 42-year-old's rendition was featured at the end of the extended World at One programme on Friday afternoon.Speaking of the special track, Katherine said: "I have only the fondest memories singing the national anthem for Her Majesty The Queen, memories I will always cherish. "While my heart is heavy with grief; singing this today, for the first time is a huge honour and was sung with the belief that King Charles III's reign will be happy and glorious!"The Queen passed away peacefully yesterday afternoon (September 8) at Balmoral, with her family around her.
She was 96 years old.An official palace statement released at 6:30pm read: "The Queen died peacefully at Balmoral this afternoon.
The King and The Queen Consort will remain at Balmoral this evening and will return to London tomorrow."Katherine paid tribute to Britain's longest reigning monarch on Instagram, writing: "On this heartbreaking day, my thoughts, prayers and deepest condolences are with King Charles, the Royal family and with my fellow Brits & commonwealth members around the world."Your Majesty, thank you for all you have given.Read more on dailystar.co.uk