Live Nation global touring chief Arthur Fogel has discussed the challenges of producing tours by Madonna and U2 in the same year.

Fogel (pictured) is promoting Madonna’s Rebel Heart and U2’s iNNOCENCE + eXPERIENCE arena dates later this year, but pointed out it is not the first time they had crossed on the touring circuit.

In an interview with Billboard, he said: “They've overlapped before. It makes for an interesting year. I suppose some would look at ...