Between back to school shopping and fashion week, September is truly the month of fashion reinventions and celebrating personal style—and who are more stylish than our resident reigning pop stars?

PopCrush Best Dressed is a month-long competition to determine the ultimate style stars of 2017!

The East and West clash during Round 1, which sees chic English singer-songwriter and former One Direction member Harry Styles, known for playing with androgynous fashion, go up against effortlessly stylish K-pop boy band BTS. It's truly an intercontinental battle, but who wins Best Dressed?

The battle begins right now: Place your vote between Harry Styles and BTS for 2017’s Best Dressed! Round 1 ends Monday, September 18 at 11:59 p.m. EST.

Harry Styles' Best Fashion Looks: