Create your own harmony for "Happy Birthday." You can write it down, or simply sing or play. The chords typically used in this song are I, IV, and V. [For students who aren't familiar with chords, try using the first, fourth, and fifth note of a major scale. For example, in G Major, you would use G, C, and D.] Use these chords for inspiration, or try out something completely different. Maybe a minor chord?