<p><br /> Whoopi Goldberg is joining the cast of Sister Act The Musical, the stage show of her 1992 hit film.<br /> </p><p><br /> Last year at the launch of the theatre production, which she co-produced, the actress and comedianne ruled out appearing in the show at the London Palladium.<br /> </p><p><br /> "No I'm not going to be in anything on stage," the 54-year-old declared.<br /> </p><p><br /> However it seems she has had a change of heart and will now join the musical for a three week stint in August.<br /> </p><p><br /> Goldberg will not reprise her role as show girl and cabaret star Deloris van Cartier. Instead she will take over from Sheila Hancock as the Mother Superior.<br /> </p>
