CHORUS:  Let's sing a song that makes the whole world happy  With everyone singin', nothin' can't go wrong now  Let's sing a song that makes the whole world happy  Give in to the music, let it make us strong now    Somethin' is missin', we gotta find it  While we still have got us some time  Somethin' is missin', we gotta find it  If we wanna make it alright    Now there's one thing that my mama told me  I can do when I'm feelin' sad  She would whistle and start a-hummin',  Makin' things seem not quite as bad  So now    CHORUS    If you are worried or feelin' lonely,  Take the time to look in your mind  You'll find a song that has always been there  You just have to give it a start    So, start a-hummin' and keep it comin'  Stop the rain to sunshine  Just remember it's not a new thing  It's been buried deep down inside  So now    CHORUS    INSTRUMENTAL BRIDGE    Let's sing a song that makes the whole world happy  With everyone singin', nothin' can't go wrong now  Let's sing a song that makes the whole world happy  With everyone singin', nothin' can't go wrong now  (2x)