As soon as you create an account you can make your artist profile - yes, even before you make a release!
Just login to your artist account and select Artist Profile in the left hand menu. After entering your artist name you can choose the end of your unique profile URL, and complete your bio in the About section. Put as much relevant information as you can in the About section, you can even embed your YouTube videos by pasting the URL/s in with the text.
Upload your best high quality artist image, and include links to all your social media accounts. Make sure you only paste in the END of your social media links, that's everything after the '/'. For example, if your Twitter account is www.twitter.com/MyBand, only paste 'MyBand' into the box for the Twitter field.
For more tips on how to make the most of your artist profile, read our blog post here.