I'm not surprised that Feist's "1 2 3 4" has been an earworm for me today. Four seconds seemed to be the interval between my cat's repeated jumps on the table in an attempt to eat my salad today. I could have accurately sung, "One, two, three, four, Collette's coming back for more."
It won't surprise me during the next time I have a salad if Collette's attempts to eat it are even more frequent and my persistent earworm is Len Barry's "1-2-3."