An electrifying central performance by Alexandra Burke, and fabulous support from the whole ensemble had the Wolverhampton Grand Theatre audience on its feet last night, as The Bodyguard showed why it is one of the best of all modern musicals. From the opening number ‘Queen of the Night’, thrillingly staged with pyrotechnics, to the emotional finale of the classic ‘I will always love you’, this was a polished spectacle with Alexandra in full diva mode in a role she was born to play. The story is familiar to anyone who has seen the ultra-popular film which starred the late Whitney Houston and Kevin Costner. Rachel Marron is a musical superstar,…