How to evaluate Chopstick Brothers' "Little Apple"?

A very brainwashing song, which is basically sung by everyone from 80-year-olds to three-year-olds.

The song is fast-paced, with a repetitive melody and catchy rhyming lyrics that make it easy to sing. Especially the line "you are my little ah little apple, how to love you are not too much", so people are particularly impressed.