Sir Tom Jones has issued an apology over a historic incident involving a brutal snub of Beatles star John Lennon. The 84-year-old recently recalled how he had refused Lennon’s attempts to shake his hand while performing alongside him in 1975, as well as going on to admit he’d once wanted to “punch” the singer. Welsh crooner Jones had been performing alongside Lennon and other stars during a tribute show for media mogul Sir Lew Grade when he gave the Imagine hit-maker the cold shoulder by refusing his attempts to shake hands. In his book Over The Top and Back, Jones reflected: “Men holding hand…