With the self proclaimed ‘nicest kids in town’ entertaining you, Hairspray rates very highly when it comes to the feelgood factor. It was back in Wolverhampton last night at the city’s Grand Theatre, bringing  the story of the larger than life Tracy Turnblad, and her battles against racism and sizism in 1960s Baltimore. As ever, it was as fun and frothy as a musical can be, but with a real moral story behind it. For audiences old and new, it once again proved that you really can’t stop the beat! 1960s Baltimore is a bastion of segregation, and this is highlighted perfectly in the teen music programme ‘The Corny Collins…