In this video, we learn how to play "O Holy Night" by Mariah Carey on piano. This song is simple and you have to realize you are going to have to count your keys out differently. Sing along while you are playing so you can better understand. Start with a C chord, then play the F chord, following the guidelines of counting the keys. As you do this, you will continue to play out the different bars and then move on to move F chords and C chords. When you approach the chorus, take your time on this, then continue to go to the end of the song. When finished, repeat playing and then see if your fingers have remembered where to move!