Was listening to my iTunes/Music collection on my Apple TV streaming from my desktop and sorted by ‘Artist.’ Each artist in the grid had a round icon available for a picture, but only the ones I’ve purchased through the Apple music store had a picture of the artist. The rest were just a dark grey blank. Looked throughout the Music app on the computer to see if there was a way of adding a picture to an artist’s name, but came up empty. Anyone know how to add profile pics for artists?