Former Eastenders actress Michelle Ryan has been talking to London Tonight about the challenges of taking on her first lead role in the West End.
She's playing the part of Sally Bowles in the musical Cabaret at the Savoy Theatre and says she's finding it much more physically demanding than her work in film or television.
She said: "You really have to take care of yourself, I'm covered in bruises, literally covered. You're like an athlete in some ways....I've never been in better shape physically."
Watch Michelle's full interview with Piers Hopkirk below.