The Artist Name does not appear on my iPhone even though it appears on iTunes?

I have an iphone 7 plus, up to date, works great no problems, the only issue it does have is, some songs that i purchase, do not show the artist's name under the the song title. The number 1 thing i thought of doing is, going to iTunes and right clicking on the song that has such issue, then i click "song info" which lets me edit the information, and even though i add the artist, it still does not appear on my iphone. Is the a way to fix this? Does anyone else have such problem?

This my music library on my phone, notice how mostly all my songs have the artists on the bottom of the song title, except for Chanel by Frank Ocean (great song by the way).

This is my "song info" on iTunes, has artist name and everything.

PLZ DO HELP