FEARS are growing for Paul McCartney who is now 16 hours into an acoustic version of Hey Jude and appears unable to prevent another chorus.

After close to 4,000 ‘na, na, na, nana nana, nana nana, Hey Judes’, McCarney’s early exuberance transformed into panic and now has been replaced by a grim resignation.

His voice hoarse and his hands raw, McCartney looked haggard as the audience’s insatiable, ruthless desire for more Hey Jude became brutally apparent.

Fan Julian Cook said: “Every time he reaches a crescendo I feel satisfied, but roughly half a second later all I want is to hear the first part of the chorus again.

“Of course I feel a bit sorry for McCartney, especially when he uses the seconds between lines to beg for mercy, but he should’ve thought of that before he wrote such a catchy song.”

While McCartney has been able to eat morsels of food between choruses, his attempts to shower and defecate have been more problematic.

He said: “These braying jackals won’t ever be satisfied. If I ever get out of this I promise to only play Mull of Kintyre, nobody has ever complained about that ending.”