Continuing its run at the Piccadilly Theatre, Grease has extended booking until 3rd September 2011. Yes, it's been around for a while, yes it's a bit cheesy and yes it's not going to drastically alter the way we view the world!   But, it is one of those shows which still offers the performer the opportunity to sing, dance and act and any show which is still packing them in during the current economic climate, and offering employment to young talent can only be a good thing.