Blink, and you’ll travel back to the glory days of disco, with Cardi B’s multi-coloured jumpsuit transporting you effortlessly. But, disaster struck at the Bonnaroo Music Festival in Manchester, when this splendid garment gave way along its nether seams, hurrying poor Cardi offstage. The singer arrived minutes later in a bathrobe, the picture of unflappability. “We gonna keep it sexy,” she crooned. That is style.