( I udjusted the lyrics of this advice to 'If you're happy & you know it' melody ) 

So:

🎼 'If you Ever feel Unhappy - Start to sing,

If you Ever feel Unhappy - Start to Sing! :) 

It should quickly cheer you up,

Music Made THE BERGENS Smile,

If you Ever feel Unhappy - Start to Sing'! 😁🎵