The one that goes
"What is the number? I don't answer. I say what is the number? I still don't answer! What is the number boy? I really don't answer!" etc
"Gabba Gabba Hey, GABBA GABBA GABBA HEY! Gabba Gabba Hey, GABBA GABBA GABBA HEY!"
Both are pretty terrible but I think I'd go with the gabba hey one. So f*cking cringeworthy, especially when the radio hosts join in with the Gabba Hey's. (sounds like they do anyway)