How can I change the album cover on Galaxy S4 (probably all S variants)

[AC Question]

So,
for the last few years I have been using iTunes as a platform to store my music on (that I downloaded from MediaHuman). These songs come with cover art, which are displayed on iTunes. When I try to transfer my music onto my device (using Android File Transfer), the cover art is gone and there is just the stock image. I want to change this into the cover art that is displayed on iTunes.
can someone help me?

 

[B. Diddy]

Welcome to Android Central! Are these M4A/AAC files? If so, they tend to have problems with proper tag-reading on Android devices (so album art might not be read correctly, as well as other ID3 tag info like album name and artist). MP3 files are more reliable for this kind of thing on Android.