Pop review: Madonna, London Palladium, W1 ****

The show had an intimacy not usually associated with a star of Madonna’s calibre ★★★★☆ “I never quit!” Madonna told her fans in a statement in late December. Unfortunately, she had done just that — on doctor’s orders. Madonna’s Madame X tour features the reigning queen of pop playing a gruelling six-month schedule of smaller venues, in…