An unwitting example of how quickly things change, the cod-country yokelry of “Diane” would have blended perfectly into 1962’s list of No.1s, but now seems quaint and entirely out of place. Innocuous enough, though, even charming if you catch it on a good day. The group’s website describes them as “the original Irish boy band”. It’s a witty and canny claim, as it’s not hard to imagine Louis Walsh running his eye over this, though no doubt his boys would have erred on the ponderous side. At least the Bachelors keep things light.