James Corden, Ronnie Corbett, Sarah Harding, Katherine Jenkins and Britain's Prime Minister David Cameron also attended the ceremony, but were overshadowed on the night as the spotlight was shone on the country's most inspirational citizens.
Among those honoured included lollipop lady Karin Williams, who dived in front of an out-of-control car to push a group of children to safety, as well as eight-year-old Harley Lane, who raised more than £1,000 for charity by completing a sponsored run, despite having his arms and legs amputated as a toddler.
After presenting him with his award, Scherzinger told reporters, "I'm humbled to be here. Last year was my first year and I cried rivers. I just want to embrace everyone here."
Also feted was teenage activist Malala Yousafzai, who hit headlines around the world last October (12) when she was shot in the head by Taliban gunmen after campaigning for the rights of girls in Pakistan to go to school.