### Trending on Billboard NCT 127 have kicked off their fifth headlining tour, ‘Neo City: The Redline‘, with a sold-out three-night run in Seoul that doubled as a celebration of the group’s 10th anniversary. ### Explore ### NCT 127 See latest videos, charts and news The K-pop act performed the final Seoul show of the run on Saturday (Sept. 20, local time) at KSPO Dome in Olympic Park, capping three days of concerts that began Sept. 18. The shows sold out completely — including restricted-view seats — drawing roughly 31,500 fans, according to the group’s label, SM Entertainment. ### Related…