Boy bands also became incredibly popular in Asia, where groups such as BTS and EXO amassed massive fan bases. To date, the Backstreet Boys remain the most popular boy band of all time in terms of sales.
One Direction also broke numerous records during their six-year run, which ended in 2016 as Harry Styles, Niall Horan, Louis Tomlinson and Liam Payne went solo ( Zayn Malik had already left the group a year prior).
