The Offspring's Self Esteem opens with that la-la-la...
Oh, I know it .. it's the one that Whatshername sings, you know she has the brown hair and she once did a duet with that guy from TV ..?
if by duet you mean poop then its totally possible.
in the middle of the song it goes...
bing boing *double gong* *spring noise* *car starter* then it makes this hot dog sound then goes, fa-la-la-la-la.. pop!
oh and like 5:38 into the song theres a sound like a ketchup bottle being filled.
i cant get that part out of my head!
Is this it?