Good Riddance (Time of Your Life) is one of Green Day's most popular mainstream releases from their album Nimrod released in 1997. This one is a very cool song with an acoustic style of playing that makes use of open strings and lots of arpeggios, played with a rhythmic picking style. It moves into these larger open position G chord, along with suspended and add9 chords, which is unusual for Green Day to write. The challenge with this song is to make sure that you lift and place all of your fingers at the same time when you change chords, as opposed to moving one finger at a time on the neck. This will keep your chords tight and help you keep the tempo steady.