Now I don't usually like it when good vocals are autotuned, like what happened on this song, but I'll make an exception, because it's only now that I realize something. In a way, I Did Wrong was a very risky song for 2AM, but in a way they pulled it off better than anyone like them could ever have.
It's not your typical heart-wrenching, soap-worthy ballad that you'd assume a ballad-based band would sing (although their repertoire is practically swimming in them) - it's like a cool version of that. It's too slow to be a dance-worthy song, even if I believe they did a bit of "dancing" for this, but once again, it's a little too upbeat to be a ballad ballad. Out of their "comfort zone".
The song also has a rap part. Of course I have no idea if it's any good, but that was another risky move. So was putting in a hook, and a very infectious one at that. In all honesty, they pulled the entire song off extremely well, and the result was more than OK.
Which brings me to a rather important point - just because someone has a gorgeous voice most definitely does not mean that they should be given a repertoire swimming in ballads. Don't get me wrong, I love beautifully-done ballads, but I believe I said this when I reviewed Lucifer - when there are few ballads on an album, I notice them more. But that's beside the point. What I'm trying to say is, it doesn't hurt for "ballad singers" to do some uptempos every now and then, because they clearly have the chops to do it - uptempos are most definitely not for talentless people.