Nokia Xpress Music Phone--SONG WON'T DELETE!?

[anberlinfan77]

I tried putting a song in my Nokia Xpress Music phone, but then it kept showing up as "unknown" so I decided to delete it...but it won't delete! Whenever I try deleting it, it says that it deleted, but the word "unknown" is still in my phone! So how do I get rid of it???