Simon Cowell has been behind some of the most successful recording artists including One Direction, Susan Boyle, and Il Divo. These days, he reveals he’s searching for a new boyband. The music mogul is holding auditions across the UK and he has some top tips for those planning on showing him what they’ve got. This June, Simon Cowell spoke on the Diary of a CEO podcast with Simon Bartlett and talked all about his career. He revealed his one “regret” about One Direction, and detailed what he thinks makes a great band. Simon explained he prefers producing records for bands because “it’s more fun …