This riff is basically played throughout the whole song.
It is originally played on the piano

e|--12-12-14-15-14-15-10-10--14-15-14-15-10-10--14-15-14-12----|
B|-------------------------------------------------------------|
G|-------------------------------------------------------------|
D|-------------------------------------------------------------|
A|-------------------------------------------------------------|
E|-------------------------------------------------------------|


This part is at the "bridge" of the song, right before the last "drop"
(around 2:30 into the song)

e|--12--| x23
B|------|
G|------|
D|------|
A|------|
E|------|