Gary Barlow, Chris Evans, James May and Brian Cox will drive through the Midlands today in a pink Rolls Royce raising money for Breast Cancer Care.
The challenge will see them driving from Land's End to John O'Groats in a bespoke pink Rolls Royce Ghost.
They want to try and raise £1 million in 24 hours.
The four celebrities will stop off in Birmingham as part of their trip to meet breast cancer sufferers from the Midlands.
More top news
A former Birmingham City football star and his wife have been named as the latest British victims of the Tunisian beach massacre.
Macmillan fled the scene, leaving the man lying in the street. He was seen running to his mum’s house nearby, asking to be let in.
A warm and humid night for most and turning rather cloudy in the north and west. Some localised mist or fog patches are possible too.