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!

In Round 2, bad gal RiRi, who edged out K-pop star CL with 59% of votes in the first round, faces off against solo breakout and former Fifth Harmony singer Camila Cabello, who beat out Dua Lipa with nearly 79% of the votes—but which diva takes the throne as 2017's best dressed?

The battle continues! Place your vote between Camila and Rihanna for 2017’s Best Dressed! Round 2 ends Monday, September 25 at 11:59 p.m. EST.

Camila Cabello Through the Years: