Prince William and Kate Middleton are to run through central London in a bid to raise money for charity.
The royal couple are in talks to jog the London Mile together to raise funds for Sports Relief and organisers are hoping 29-year-old William and Kate, 30, will run down The Mall in front of Buckingham Palace on 25 March.
According to the Daily Mirror, a source said: "We are in talks with the Prince's representatives and understand he is eager to support the event, as he has done previously. We're hopeful Kate will be able to do it too.
"It's a huge honour to have the support of the Royal Family for this event, which raises millions of pounds for people in poverty in both the UK and abroad. We hope hundreds of thousands of Brits will follow in their footsteps to run a Sport Relief mile somewhere in the country to raise cash."
Other stars taking part in the fundraising extravaganza include JLS, who have recorded an official Sport Relief single, and comics Miranda Hart and John Bishop.