Go to the login page on the browser or app, then select sign up, and sign up with: (1) Email, (2) Google, (3) Apple, or (4) Kakao.
App Link
Fill all applicable fields, and verify email when required.
Click 'Next', then select Agree to all Terms of Use Agreement, then click 'Sign up now'.
It will likely ask you to set your notifications preferences at this time.
After setting your notifications settings, you should be fully signed up. Then, you can explore the site/app by clicking 'Start' to find your favorite artists.