It’s the curse of Hey Jude.
On Friday night Paul McCartney was bamboozled by a sound delay glitch that threw him off his stride.
He ended up having to quickly catch up and miss part of the verse.
It was part of a shaky performance during Danny Boyle’s spectacular opening ceremony for the London 2012 Olympic Games.
Earlier this month, he’d been considering playing Hey Jude at the end of his ‘surprise’ spot at Bruce Springsteen’s Hard Rock Calling.
But Westminster jobsworths pulled the plug, meaning he was unable to continue in London’s Hyde Park.
Back in June he dropped Hey Jude from the set he played for the Queen’s Diamond Jubilee concert.
Word is that he knew he’d be playing it at the Olympics gig, and didn’t want to tempt fate.
And, of course, in 1985 his microphone cut out as he sang the song as the finale to Live Aid at Wembley Stadium.
That left him singing to himself until someone managed to pop the plug back in.
So be warned next time you think of singing Hey Jude.
St Jude, you’ll recall is the patron saint of lost causes.
And given Macca’s straining vocal, he might well offer up a prayer or two.