Some people are offended by the ice cream truck song and say the melody is based on "Nigger love a watermelon" from 1916 performed by Harry C. Browne.
"Nigger love a watermelon" however is based on (in modern terms a parody of) "Turkey in the straw" which dates back to the early 19th century and is not a racist song. So now you know the story why people who get offended by the ice cream truck song are morons looking for something to be upset about.
Turkey in the straw:
https://www.youtube.com/watch?v=2KBYIJA2uYs