Why isn't my phone showing cover art for any of my music?

[xxaimzxclutchxx]

I am a music visualizer on YouTube... I download from the legal site, ninety9lives.com/music. And for every song I have has actually no cover art, they ALL have the title as the cover art. How can I fix this...?

 

[B. Diddy]

Welcome to Android Central! Use an ID3 tag editor like Media Monkey on your computer to add the artwork. Or upload the music files to your Google Play Music library in the cloud, and add the artwork there (this has to be done on the desktop browser website, not the app).