What do Adele, Aerosmith and Bruce Springsteen have in common with Elton John, The Smiths and Neil Young? Or, say, Phil Collins, the Rolling Stones and Rhianna? The answer is that all have protested at the unauthorised use of their songs at Donald Trump’s rallies. You can also add to the list Guns N’ Roses, Linkin Park, Ozzy Osborne, Panic! At The Disco, Everlast, The White Stripes, Pharrell Williams, Creedence Clearwater Revival, Queen, R.E.M., Nickelback, Village People and the estates of Isaac Hayes and Tom Petty. ‘Donald Trump stole our song’ would make a mighty fine Spotify playlist – and it seems Trump has strong opinions about music. “I actually gave a teacher a black eye because I didn’t think he knew anything about music,” he wrote in his 1987…