It probably would be surprising to anyone who would look at Rosé, with all your success, with the enormous fan base that you have, to know that you doubted yourself so much. I don’t think I ever learned or trained myself to be vulnerable and open and honest. So that was the part I feared, because it was the opposite of what I was trained to do.

“Number One Girl” follows ROSÉ’s recently released collaboration with Bruno Mars, “APT.” The track hit No. 1 on the Billboard Japan Hot 100, becoming the first song by a Western act to rule the Japan song chart in more than 11 years. The song also spends a fourth week atop both the Billboard Global 200 and Billboard Global Excl. U.S. charts.

K-pop star Rosé released a single and music video for "Number One Girl," a song from her debut solo album, "Rosie."