'God Save the King' is the national anthem of the United Kingdom, and it has been in use since the 18th century. The question of whether it should be changed is a matter of public debate. Some people argue that the anthem should be updated to reflect the diversity of modern Britain, while others argue that it is an important part of the country's cultural heritage. Ultimately, whether or not to change the national anthem is a decision for the people of the United Kingdom to make. What should replace it? Mark and Pete have the answer.