Radio 2 DJ Chris Evans has told listeners he is "in the middle of the tests" for prostate cancer.
The presenter talked about it after former Small Faces and The Who drummer Kenney Jones, who himself survived prostate cancer, appeared on his breakfast show in support of a charity campaign.
Evans told listeners: "I've got to say I'm in the middle of a prostate issue right now."
He said he had gone to see a doctor after he couldn't stop peeing, and that he scared himself "half to death" when he researched the subject on the internet.
Evans said he used to be "scared" of medical tests but added he had "completely changed my tune on this the last couple of years".
BBC Radio 2 breakfast host Chris Evans has hit another audience high, with a new record number of listeners to his show.
The 48-year-old now pulls in 9.91 million each week, giving his show the biggest audience recorded in the UK since the current measurement methods were launched 15 years ago.
Evans is almost four million ahead of his Radio 1 breakfast rival Nick Grimshaw, who has himself seen a slight boost in his numbers to 5.97 million - up from 5.89 million this time last year.
Radio 3 has seen its audience slip below that of the BBC's digital-only 6 Music for the first time.
Radio star Chris Evans has sold his classic 1959 Ferrari for £3.8 million- breaking the world record auction price for the model.
The sports car was also the second most valuable car to be sold at the RM Auctions sale in Monaco over the weekend.
The rare Ferrari 250 GT Cabriolet Series I is considered to be one of the "most beautiful" convertibles ever built.
DJ Chris Evans has impersonated paedophile Jimmy Savile live on air to nearly 10 million listeners on his Radio 2 Breakfast Show.
He imitated the disgraced star's delivery, joking: "It sounds like someone else whose name escapes me at the moment - I have no idea who that is."
Evans' producer quickly intervened, saying: "We've never needed to move on more urgently."
The controversial presenter's remarks came after the 47-year-old played Sparks' 70s hit This Town Ain't Big Enough For Both Of Us.
Radio 2's Chris Evans and Absolute's Christian O'Connell will battle it out for the hotly-contested breakfast show honours at the Sony Radio Academy Awards on Monday night.
Radio 1's breakfast host Chris Moyles failed to get nominated in any category for the annual event, for the first time in seven years.
Evans and O'Connell will also face each other in the music radio personality of the year category at the respected bash.
They face last year's winner, 5 Live Breakfast, in the breakfast show battle, alongside Jamie Theakston and Harriet Scott's Heart Breakfast (London) and Kiss Breakfast.
And completing the music personality line-up are Lauren Laverne and Huey Morgan from Radio 6 Music plus Radio 1 Xtra's Gemma Cairney.