Uh-Oh The Interweb

Through the power of the internet I have found an answer to my earlier question:

In 1965, Jimmie Rodgers, a popular music star and teen idol at the time, convinces Campbell's executives to add the "Uh-Oh SpaghettiOs" line to their advertising jingle. This catchy tune helps propel SpaghettiOs to instant success and is still used in advertising for the brand.