Dermot O'Leary tonight completed 24 hours of non-stop dancing for Comic Relief.
Finishing up by dancing his way into the London Palladium, O'Leary was met by Davina McCall and Lenny Henry, who revealed the Radio 2 DJ had raised £643,336 for charity.
As O'Leary arrived in the theatre, live on BBC One, Lenny Henry joked: "Dermot comes from a long line of dancers - it's a conga line."
Henry asked O'Leary how the balls of his feet were feeling after the challenge.
O'Leary joked: "Every ball in my body in any way, shape or form has been through a hard time after I've been on my feet for the past 24 hours."
O'Leary has been joined by a host of celebrities, including Sam Smith, Stephen Merchant, Little Mix, Caroline Flack, Daisy Lowe, Ella Henderson, Kirstie Allsopp, Sally Phillips, Geri Halliwell, Tony Blackburn and Terry Wogan, as well as getting a special Skype message from James Corden all the way from the US.
He took on his 24-hour Day of Dance following a trip to Kisumu, Kenya, where he spent 24 hours with street kids.
O'Leary said of his trip: "It was extraordinary. I met these three young men - two 12 year olds and a 14 year old - who have had to grow up in an instant because they don't have the safety net we have in this country.
"Their lives are so stark, they live on a day to day basis, they try to make as much money as they can to survive, and all they want to do is go to school."