SIMON Cowell splashed out £30,000 on a The Greatest Showman-themed party for his son, Eric. The music mogul, 59, hired London’s Mandarin Oriental Hotel for the star-studded bash on his son’s fifth birthday. Cheryl Tweedy, 35, Alesha Dixon, 40, and Katie Piper, 35 were among stars who brought their kids to the party in Knightsbridge […]