this is a really cheesy song, but i just love the words to it, they are so cheerful :)

Say cheese
Smile please - come on everybody
Pass it on, pass it on - gonna pass it on
Smile please pass it on
Everyone's gonna pass it on
Smile please - pass it on
Pass it on gonna pass it on
Ready? Say cheese…

Last night - I saw you crying
And in the morning you still feel blue
But losers they give up trying
So wipe that tear away
And let the sunshine through

So smile 'coz we're gonna take your picture
So you'll see how good it feels
(Watch the birdie)

(Chorus)
Smile please, come on everybody - wear a happy face
Smile please, come on and blast all your troubles into space
Smile please come on and pass it on from face to face
It's such a simple point of view
Smile and the world smiles back at you
Say cheese

Sadness does you no favours
A little sunshine is overdue
'coz happiness is so contagious
And if you wear a smile
We'll never give up on you

So smile 'coz we're gonna take your picture
So you'll see how good it feels
(Here it comes)

(Repeat Chorus)

Pass it on pass it on gonna pass it on
Pass it on everyone's gotta pass it on
Pass it on pass it on gonna pass it on
Pass it on everyone's gotta pass it on
Ritmo del queso
Looking good
Aye aye aye
Ariba

We're gonna take your picture
So you'll see how good it feels

(Repeat Chorus)

reminds me of that hershey's commercial; Put a smile on your face...