In a pop era where personal messiness is the oxygen of fame, Dua Lipa is the rare unfazed professional. Just as Taylor Swift and Charli XCX's (extremely asymmetrical) feud spilled over the Hot 100 trenches, in comes Lipa's Radical Optimism tour for four nights at the Forum to reassert that it is, in fact, possible to spin off hits while leaving one's personal life unscathed.