U2 frontman Bono, who has spent the past two months recovering from an operation after injuring his back in an accident while preparing for a world tour, claims he took up his nicotine habit again because he was so bored.
The singer, who played his first gig since the operation two weeks ago in Italy with bandmates The Edge, Adam Clayton and Larry Mullen Jr, said: "One of the things you can do when you're lying down like that is to write, so I wrote. Lying motionless I also had time to think about the future, because I never think about the past.
"The other thing I did was to eat ice cream and I also started smoking again."
The 'Sweetest Thing' singer had to pull out of the North American leg of his band's tour and a planned appearance at the world-famous Glastonbury Festival because of his condition and he is delighted to be back in action.
Speaking at a recent Italian concert, he said: "That's in the past now and I'm very much fit for the future.
"This band is like a family. I am the prodigal son. I would like to thank my brothers for their patience."
Bono was advised to give up smoking by doctors in the late 90s following a bad sinus infection, but he was seen smoking again in 2003 before quitting again for a healthier lifestyle.