Adrian Besley is a freelance writer and former copywriter for the BBC. He is the author of many non-fiction titles, including EXO: K-Pop Superstars, Blackpink: K-Pop's No.1 Girl Group and Billie Eilish: From e-girl to icon, as well as 5 Seconds of Summer Confidential and a series of top-selling YouTube books, including YouTube World Records.