At a moment when it is standard, if not expected, that pop stars will change outfits half a dozen times during live performances, Adele is turning the status quo on its head. Rather than go through the gamut of wardrobe changes, the British icon’s world tour (whose U.S. leg starts July 5) has been defined by a single pair of flats and just one sparkling, Christopher Bailey-designed Burberry gown — one that quite a lot of work went into.
