Thể hiện: Pharrell williams
Thể loại: Nhạc quốc tế
Lời nhạc chuông Happy:
Because I’m happy
Clap along if you feel like a room without a roof
Because I’m happy
Clap along if you feel like happiness is the truth
Because I’m happy
Clap along if you know what happiness is to you
Because I’m happy
Clap along if you feel like that’s what you wanna do