Sir Paul McCartney may still be looking great for his age but his lack of trouser-checking resulted in blushes all round after he left his flies undone.
However, looking as glamorous as ever was his girlfriend Nancy Shevell, who saved the day with a strange outfit topped off with glittery leggings
produced by none other than Stella McCartney.
Ms Shevell wore a salmon-coloured dress and a cream fitted jacket but added some extra style through her sequin-studded legwear
to add a bit of a different take on the usual boring outfits.
Despite this, the Daily Mail was relatively nonplussed, describing them as looking like "bubble wrap".
Nancy and Sir Paul were on full display at Stella's most recent catwalk function in Paris earlier in March, alongside the likes of Salma Hayek and Kanye West.
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