This is strange ... just googled for Images of "Celebrate my ass" (hee hee i'm so BAD today) and the first site that came up was "Songs of the Great Depression".

Not sure what any of those lyrics have to do with celebrating ass, but I like'em! Maybe it's got something to do with this?

    "Life is just a bowl of cherries.
    Don't take it serious; it's too mysterious...
   
       There's a guy in the show, the girls love to kiss;
       Get thousands a week just for crooning like this:

    Life is just a bowl of . . . aw, nuts!
    So live and laugh at it all!"

(From "Life is Just a Bowl of Cherries," lyrics by Lew Brown, music by Ray Henderson (1931)