Hold on to your dentures for this music video by BBC documentary-maker Tim Samuels, at www.youtube.com/watch?v=zqfFrCUrEbY&NR=1. Samuels assembled 40-member group the Zimmers - touted as the largest and oldest rock band in the world - to perform the Who's 1965 hit song My Generation, which ranks 11th on Rolling Stone magazine's list of the 500 greatest songs of all time. The troupe of senior citizens from across Britain are storming the pop charts, 'sticking it back to the society that has cast them aside', says Samuels. Lead singer Alfie Carretta is 90, while some band-mates are centenarians. Their single (available on iTunes since last month) was recorded at Abbey Road Studios, where most of the Beatles' albums were made.