Gary Lineker has told ITV News how he enlisted the help of Gary Barlow and a host of old England teammates for this year's World Cup song.
Chelsea midfielder Frank Lampard is ridiculed by the outspoken daughter from the BBC1 show Outnumbered in a stunt for Sport Relief.
Former England cricketer Freddie Flintoff has been attempting to break 12 world records as part of a Sport Relief challenge
Alan Shearer and Robbie Savage will tackle each other in a five-day Sport Relief challenge to see who can sit on 45,000 Wembley Stadium seats in the fastest time.
Shearer Vs Savage: The Battle of the Backsides will see the pundits divvy up Wembley Stadium's 90,000 seats from March 10-14 and attempt the sit-off, with each aiming to be the first to complete 45,000 chairs and reach the winning post, the royal box.
Estimates suggest that they will have to manage around 14 seats per minute across 10 hours each day in order to complete the challenge by the time the final whistle blows.
Match Of The Day star Shearer said: "Even at the peak of my career this challenge would have been tough on my body. However, now I am a retired footballer - so it's going to be a challenge of physical and mental endurance. I can't let Rob win; I'd never live it down."
Savage added: "Alan does have an advantage as his butt is larger than mine - but my bottom is ready for the challenge."
To support the challenge, members of the public are being encouraged to enter a competition at www.sportrelief.com/backsides with the chance to win tickets to see England play at the 2014 World Cup in Brazil, a day watching tennis at Wimbledon or a chance to see One Direction playing on tour.
Thousands of running enthusiasts joined celebrities and sports personalities today for the Sport Relief London Mile.
Conservative MP and former Strictly Come Dancing star Ann Widdecombe started the first wave of the charity run, which included Spice Girl Melanie Chisholm, model Nell McAndrew, EastEnders actors Matt Lapinskas and Tony Discipline and Olympic and Paralympic medallists Allyson Felix and Chris Holmes.
The Sainsbury's Sport Relief Mile is one of hundreds of runs happening around the country to raise money for the charity appeal.