The Edge has spoken of how his great friendship with fellow bandmates has contributed to the longevity of U2.
The U2 guitarist credits their three decades of music success to the comradeship that has bonded them together.
In an intimate interview with RTE presenter John Kelly, to be broadcast next week, the Edge reveals how it's the music that keeps him sane.
"There's something about performing our songs in front of a large crowd which works and it's to do with the fact, I think, that a lot of those people at those shows are there to celebrate not just their favourite band, or a favourite band of theirs, but part of their history," he said.