My Angah....a guitarist in the making??

My hubby gave his old guitar to my 2nd boy. The guitar is more than 20 years old. So far the enthusiasm is still there so whenever he feels bored or nothing to watch on tv, he will strums quietly in his room or shows off a little that he know to me.....anyone can guess what song he was playing?? First to give right answer will get nice cheese cupcakes the next time we meet .....enjoy the clip