How come the limewire album artwork won't change on itunes?

Okay so I got some songs from limewire and pasted them on itunes but the artwork isn't the real artwork for that song,and i want to get the real art work so it looks good on my ipod.

so anybody please please please help?

Thank you soooo muchHow come the limewire album artwork won't change on itunes?Most songs that are shared on LimeWire aren't ripped from the official album CD you'd find at your local music store.

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