Ellise Shafer Charli XCX and Troye Sivan are promising to turn iconic venues into raves on their newly announced “Sweat” tour, which includes a stop at New York City’s Madison Square Garden. The pop innovators, who have collaborated on songs “1999” and “2099,” will co-headline with Shygirl opening for all dates. According to a press release, the tour is “not only a celebration of their individual successes, but it is also a testament to their commitment to inclusivity and diversity within the music industry.