I was looking at the artist "The Quiett" and noticed that there's not a lot on his profile. I was curious as to whether I can add some information/pictures/videos etc. to his profile.
You can edit the infomation. You can't add pictures, but you can add discography and then add songs to the albums. You may read about the profile pictures here: http://www.jpopasia.com/forums/posts-in/artist-profiles-picture::7::11095::1