How do I get rid of this song??

[aaimbrogno]

Last summer I downloaded a 10 song playlist that I got for buying a Frappuccino at Starbucks. It turned out I didn't like any of the songs anyway, so I deleted them, but this one song keeps sticking around and it won't go away. Even if I uncheck it and make sure to only sync checked songs, it shows up in my phone.
I can't delete it from iTunes either! I even went to "purchased on Ami's Iphone" and it wasn't there. How do I get rid of it?

 

[BLiNK]

in iTunes right click on the desired song and select Show in Windows Explorer (if using Win) then go to the containing folder and delete the song file

 

[aaimbrogno]

I have a mac and the song isn't anywhere on my computer, I guess it's in my iCloud through iTunes match. All other songs will delete when I try to delete them so I don't know why this one won't.