This is a very easy way to play this song that is perfect for people wanting to play and sing at the same time. It works perfectly with the Boyce Avenue Version I think it sounds a lot closer than most of the other tabs I found on here. CAPO ON 3rd FRET STANDARD TUNING [EADGBE] Once upon a time, a few mistakes ago I was in your sights, you got me alone You found me, you found me, you found me-e-e-e-e I guess you didn't care, and I guess liked that And when I fell hard, you took a step back Without me, without me, without meeeee And he's long gone, when he's next to me and I Realize the blame is on me [single-strum*] 'Cause I knew you were trouble when you walked in So shame on me now-ow Flew me to places I'd never been 'Till you put me down, oh I knew you were trouble when you walked in So shame on me now-ow Flew me to places I'd never been Now I'm lyin' on the cold hard ground! Ahh oh oh, trouble, trouble, trouble Ahh oh oh, trouble, trouble, trouble you can work out the rest from there as these chords are repeated.