You're forgetting the Top Six Inane Lyric and Daktari-Jungle-Cool Hits of the 60s

1) "Beans in my Ears" Serendipity Singers 1964

2) "I Love Onions" by Susan Christie 1966

3) "The Lion Sleeps Tonight" the Tokens 1961 ("a-wing-a-witz-a-wing-a-witz etc" contends for top earworm of all time)

4) "The Baby Elephant Walk" Henry Mancini 1961

5) "Born Free" John Barry 1966

6) "Tie Me Kangaroo Down Sport" Rolf Harris 1963

Actually though, the aforementioned six are kinda cool in a Dr. Demento sense...