While playing the C chord in the verses,he occasionally turns it into a Cadd11 chord by adding his pinky on the 3rd fret of the D string,by listening to the song you can hear when he does it,it does not change the song in any way if you don't do it ! But it sounds pretty ! Intro : C (hammer-on and pull-off on the D string 3rd fret with your pinky) C Cmaj7 Am Being with you was all that I needed Am And I don't know why you were too blind to see it F Now you're gone Fm And I need you here tonight C (hammer-on and pull-off on the D string 3rd fret with your pinky) C G Em7 You know that I can't sleep 'cause I'm terrified Am F Feels like I'm falling down really fast inside G Em7 And I'm wishing the night away Am7 These chills in the evening F Fm They won't go away C (hammer-on and pull-off on the D string 3rd fret with your pinky) Cmaj7 C Cmaj7 Am And sometimes I feel like I can't go on living Am There's not much to take when you've done all the giving F Now you're gone Fm And I need you here tonight C (hammer-on and pull-off on the D string 3rd fret with your pinky) C G Em7 You know that I can't sleep 'cause I'm terrified Am F Feels like I'm falling down really fast inside G Em7 And I'm wishing the night away Am7 These chills in the evening F Fm They won't go away G F And now I need to find a way Am G To stop this pain from getting stronger (tricky part : while playing the G he takes his index finger,puts it on 2nd fret of the G string quickly and then takes it off,you can hear it in the video,again it's not an essential part of the song,sorry I wish I could explain this part better !) F G Am F Fm And I just can't explain, I don't understand why you left me here G Em7 Am F C G Em7 Oh you know that I can't sleep 'cause I'm terrified Am F Feels like I'm falling down really fast inside G Em7 And I'm wishing the night away Am7 These chills in the evening F Fm They won't go away C Cmaj7 Am Ohhhhh F Fm C (hammer-on and pull-off on the D string 3rd fret with your pinkie) They won't go away I hope this was clear enough,I know this gets a little confusing sometimes,but I tried my best !