The way Ed Sheeran played at the Itunes Festival 2012 left me speechless. What a vital energy coming from this 21-year-old guy! His guitar and the loop pedal was enough to put the audience into raptures. The A Team was the first song from those of Ed that I tried to play. Here is the acoustic boat version available on YouTube. A great tutorial from JustinGuitar is available here. If you want to know who Justin is, I suggest you read this interesting article by Beginner Guitar HQ.
Here are the guitar chords of The A Team.