Chris Willman Music WriterTaylor Swift’s “Evermore” became the singer’s third album in 16 months to sell a million copies globally in its first week, and the eighth straight studio release to sell that many in a week in her career, according to Republic Records.Only her debut album, “Taylor Swift,” failed to sell a million worldwide in at least one given seven-day period; every release since 2008’s “Fearless” has done so.“Evermore” is certain to have a big second week, as well.