You could measure the success of Karol G’s first North American headlining tour last year by the numbers: 24 shows, 128,000 tickets sold, a gross of $10.9 million, according to Billboard Boxscore. Or you could measure it in wigs: Countless fans, from the floor seats to the rafters, donning aqua-blue hair for the night to mimic the pop star’s own technicolor tresses. The first time she noticed it, “I was very shocked,” the 31-year-old says. “But after the tour, I realized Karol G and ‘Bichota’ ” — slang for bad b–ch, and the title of one of her hit singles — “are a movement.” Explore Explore Karol G See latest videos, charts and news See latest videos, charts and news With her relatable lyrics, empowering expressions of female sexuality and adventurous sound — incorporating elements of R&am...