I have came across many mp3 fakes. Although even if it is an old or new band there is still a chance that it could be fake.I've came across fakes that had no file. Fakes that no player can play.(It was probably a virus because no player can play a virus. But my computer didn't get infected because I cancelled it. )
And a fake that was a different song. But skip the songs that are fakes. And put them in the junk filter so it can learn what's junk and what isn't. And so you dont come across that file again.