After Baaba Maal’s intoxicating, inventive set, the Senegalese superstar was joined by the Island label’s biggest-selling act U2, for a spine-tingling version of their standard, One, which morphed jauntily into Bob Marley’s One Love. Maal exited and U2 launched into a splendidly ramshackle version of 2004’s Vertigo. It was hard to tell whether the crowd were more astonished or delighted.

Although Bono stayed to introduce Yusuf, there was little chance that the former (and still possibly current — even Bono hedged his bets) Cat Stevens would be overshadowed by the world’s biggest band.

Instead, the man now resembling a slimline Bill Oddie did what he was doing until he retired for 25 years in 1979 and sang his vaguely spiritual, slightly wet but always masterful songs in his strangely affecting voice. He was so taken with the adulation that he forgot himself and declared to the audience “you’re the best”, before pointing his finger skywards, chuckling, “no, he’s the best”.

If Wild World suffered from a clumsy rearrangement and there was no room for Matthew And Son, Ruins retained its shimmering beauty, the new Welcome Home showed the creative fire still burns and anyone who didn’t fall for Father To Son all over again has a harder heart than mine.