Loudest to look at is lead guitarist Mike Campbell, a man whose big-hat-and-shades combo nods to Slash from Guns N’ Roses even as his bright yellow raincoat channels Paddington Bear. As its bass riff booms out across the stadium, keeping the rain at bay, two new links join this fraught concatenation. The Chain is pretty much the only song this schism-prone outfit ever wrote together. The crowd are perfectly happy to sing along with Neil Finn, rather than fold their arms in protest The results were immediate: two of the biggest albums in rock history, sacks of cash, dangerous liaisons, mucous membranes caked in “booger sugar”. Buckingham assented, but only if he could bring Nicks. Fleetwood asked Buckingham to join his band in 1974. The reunited classic 70s lineup of Mick Fleetwood, John McVie, Stevie Nicks and Christine McVie (back in the fold since 2013) has been touring for a year without guitarist and songwriter Lindsey Buckingham. You can’t help but wonder, though, what constitutes a quorum in Macworld – a notoriously fickle place, which has seen a number of key personnel go missing.

One, the Peter Green-era blues Black Magic Woman, made famous by Carlos Santana, finds Nicks vamping her way through a female reading of the tune as the chandelier glitters darkly.

The Fleetwood Mac setlist – barely varying from Berlin to London – is replete with peak-period hits and refreshed by a couple of deeper cuts. Super-producer Jimmy Iovine (Tom Petty and the Heartbreakers, Nicks’s 1981 solo album Bella Donna) has flown over from the States, she says. Superfan Harry Styles has brought his mum, Nicks reveals, complimenting her on what a well-brought-up young man he is.

Amusingly, it goes back up afterwards, reappearing and disappearing with every one of her compositions on the final night of Fleetwood Mac’s European tour.

On Dreams, a bittersweet classic written by an enduringly swirly Stevie Nicks, a chandelier descends from the rigging. A dozen people fill the vast stage, reproducing some of the most opulent harmonies and venomous kiss-offs of the late 20th century. Wembley Stadium is brimming with fans, even on a wet Tuesday.

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