Idontknow के बोल

Must be happy Happy Must be happy I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know (must be happy) I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know (happy) I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know (you must be happy) I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know (happy) I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know (must be happy) Tell you what I can help you, oh I'm talking, help you, oh I can help you, brave (must be happy) Tell you what I can help you, oh I'm talking, help you, oh I can, I can I don't know I don't know I don't know I don't know I don't know I don't know I don't know I can I can tell Must be happy I can tell I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know (must be happy) I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know I don't know, I don't know Must be happy Happy