I guess it's not technically a jingle, but the commercial for that Head On migraine product is pretty brutal! "Head On, apply directly to your forehead!" repeated continuously throughout the whole ad ... seriously, who came up with that idea?
Also, any commercial featuring Billy Mays (I realize he is no longer with us, and mean no disrespect) is pretty annoying ... why is he yelling at me through the tv screen?? It hasn't made me want to buy a single one of his products!