I must have just found it randomly while perusing the appstore, I don't remember the name and I couldn't find it in the top music apps or the first 10 or so pages of 'most popular.' All I really remember is you could record your own vocal track (or drums, or whatever you have) and remix songs. It came with 4 or 5 songs, and had in-app purchases. Sorry I don't have much else to go on... I believe the price was $1.99 if that narrows it down.
No I have all those. I really wish I could at least remember one of the artists on there so I could search by it. I want to say you could re-record any of the 4 basic tracks if you wanted to... but it definitely wasn't one of the "high end" music apps.
i found it mix me in not sure if i want to spend my last 2 bucks since i'm not letting myself put any "unnecessary" charges on my credit card these days I guess curious if anyone has tried it? Otherwise, thanks for trying to help