I have an even cheesier one that I sing to my friends or nieces and nephews to cheer them up and make them smile......
You are my sunshine,
My only sunshine, You make me happy....
When skies are grey. You'll never know dear, how much I love you....
So please dont take my sunshine away!!
(I dont know if they smile because of the song or because of my cheesy high pitched voice when I sing it!!)
I also like the Nickelback song too!! If everyone cared....
And my third choice would be (I sing this in my head every time I go to doggy park on a pretty day!) Saturday in the Park by Chicago