Comedian Ricky Gervais has joined a host of famous faces lending their support to a new campaign to raise awareness about lung cancer.
Ricky has been personally affected by the disease which is the UK's biggest killer cancer, claiming the lives of more than 35,000 people every year.
Images of Ricky will feature on buses and the London Underground during November - Lung Cancer Awareness Month - as part of the initiative developed by The Roy Castle Lung Cancer Foundation.
His mother Eva died from lung cancer in 2001.
The funnyman said: "It's devastating when you see someone you love dying from lung cancer. It's a horrible, horrible disease.
"By the time most people are diagnosed, it is far too late for treatment and seven out of 10 people will die within a year of diagnosis.
"My mother's death was very sudden and you can't help wondering if things would have been different had it been spotted earlier.
"So even though it's winter and even if you're a smoker, if you've had a bad cough for two to three weeks and you can't get rid of it, make an appointment with your GP today."
Other names who have been photographed displaying X-rays of a healthy pair of lungs as part of the campaign include Hollyoaks actor Emmett Scanlan, Manchester United manager Sir Alex Ferguson, footballers Bruce Grobbelaar and Graeme Sharp and British Olympic rowers Pete Reed and Katherine Grainger.