Without doubt, Sir Mick Jagger is a heroic figure. Unlike other rock stars of his vintage, he still manages to sing and dance with all the vitality of a man in his 20s. But enunciation has never been his strong point. If, like Eliza Doolittle, he were to be asked to sing 'The rain in Spain stays mainly on the plain', it would come out as 'Dur rhymin' spine says minely armour plyeen'. This means that, most of the time, the words he sings are unintelligible. I must have heard songs like Honky Tonk Women, Brown Sugar and Jumpin' Jack Flash at least ten times a year for the past 50 years, possibl...