Bob Geldof has said he blames himself for the death of his daughter Peaches, who died earlier this year.
Speaking on RTÉ's Six-One News, the singer and activist said that being back on the road with the Boomtown Rats has helped him deal with her loss.
Peaches Geldof was found dead at her home in Wrotham in Kent on 7 April.
An inquest later heard that the journalist, model and television presenter died of a heroin overdose.
She was married and had two small sons, Astala and Phaedra.
In response to reports that he said that he had blamed himself for her death, Mr Geldof said that he "can't see how it can be other".
"What else are you meant to think. Of course, you know every parent, I suppose, ultimately fails, like every generation ultimately fails.
"But I can't see how you can avoid not thinking ... what could I have done there ... but you know, as people unfortunately know, the circumstances of my kids' upbringing was difficult.
"In effect, the kids become part of the pillars upon which you hold up your own life, when one of those pillars collapses, when the parental radar is still scanning, when the memory banks can't delete it, what else are you meant to think."
But he said that touring with his band has helped him, saying he is given the opportunity to vent for two hours leaving him exhausted physically and psychologically, "but it’s a good tiredness".
"I'm useful at the moment, but that's not why I'm going out on the road. I'm going out on the road because that's my job, that's what I love doing."
Mr Geldof recalled that "even back in the days in Gardiner Street (Dublin) when I was worried about what to do" he felt he was capable of anything when he played with the Boomtown Rats.
"I was Bobby Boomtown and he isn't the guy who goes moping off and ranting about the planet and everything that's gone wrong.
"He's another guy altogether."