Queen guitarist Brian May has revealed he is undergoing tests for cancer.
May explained on his website that on the run up to Christmas he experienced agonising pain, "So bad I had to give up on going anywhere if there was standing up involved," he said.
He explained that since then he had undergone several scans which showed up "all kinds of mechanical disc and vertebra problems that might be the cause of the pain, but there were also some abnormalities in the bones - things that the report said needed urgent attention.
"So around Christmas I've been having a succession of blood tests, ultrasounds, and various kinds of scans, to see if they could rule out various kinds of cancer."
The musician says he has been "overwhelmed" by the kind messages he has received after going public with his health, adding he will be undergoing a further scan today.
The rock star and wildlife campaigner Brian May has apologised for using the term 'genocide' to describe the badger cull pilots taking place in the West of England.
The Queen musician's alleged remarks were made during a visit to Gloucestershire last week and caused a backlash among members of the Jewish community.
Writing on his website, May said he could not remember using the phrase "genocide in the countryside," but that he had given some 20 interviews and may have lost track.
May said he had no intention to "slight the Jewish community" but maintained it was "not a very big flight of fancy" to refer to the killing of animals in this way.
"The word I prefer to use about the badger cull is 'massacre' ... because really the word 'cull' is enormously euphemistic," he added.
Queen guitarist Brian May has joined dozens of anti-badger cull protesters on a night walk through one of the pilot areas.
The rocker got a warm round of applause when he met around 50 people taking part in one of the nightly Wounded Badger Patrols in Eldersfield, near Tewkesbury, Gloucestershire.
Queen guitarist Brian May has visited Gloucestershire today to lend his support to demonstrators protesting against the cull of thousands of badgers in the area.
He told ITV News Correspondent Emily Morgan "We might be losing the fight, I don't believe we will lose the war in the end".
He added that the cull "cannot help the farmers, that's the biggest irony of all. The only thing that can really solve this problem is vaccination".
Queen guitarist Brian May could be heading for an unlikely hit after his protest song inspired by the badger cull reached the charts.
The song, Save The Badger, Badger, Badger, was recorded by May and internet entertainer Weebl and features the vocals of Brian Blessed.
It has made the top 40 in the iTunes download chart and is the most popular track in the iTunes Store top 10 rock chart.
Blessed, who played Prince Vultan in the 1980 film Flash Gordon, said: "Brian May is absolutely inspirational and together we will beat the dark forces and save the badgers."
Around 5,000 of the animals are expected to be killed in controlled shootings over six weeks in Somerset and Gloucestershire.
Supporters say the cull is needed to tackle bovine TB, which can be spread from infected badgers.
May said: "The British people are speaking in their many thousands, and yet the government is refusing to listen.
"We thank them for buying this track and giving the badgers a voice. Let's get this to number one so (David) Cameron cannot avoid it."
Rock star Brian May led around 2,000 animal welfare supporters - some wearing badger masks - in a march through central London today as they called for the Government to abort plans to cull thousands of badgers.
Queen guitarist Brian May has renewed calls for the Government to abort plans to cull thousands of badgers in an effort to tackle bovine TB.
May said: "The great bit of new information is it has now been demonstrated that the cull cannot make economic sense. It will lose the taxpayer money rather than save it.
"That was really the last shred of reason that you could give for this cull going ahead. It is a very good time for Mr Cameron to reconsider and withdraw from this monstrous cull, in the public interest.
"Our point is to save wild animals from abuse and there is no doubt this cull is going to cause intense pain on a massive scale to badgers. You cannot call it humane, which is apparently what these pilot culls are about.
"It has become increasingly apparent to me that, although we call ourselves a nation of animal lovers, we treat them appallingly".
Queen star Brian May has called the news that badger culls are to go ahead "very, very sad".
May said his initial reaction was "sadness and a certain amount of frustration":
The astrophysicist and former Queen guitarist Brian May has said that Sir Patrick Moore's contribution to astronomy will be there "for all time".
He said that the late astronomer combined enormous generosity with a prodigious understanding of his subject: