Caipirinha

The original song is Caipirinha which is a Brazilian style music written by a German singer Carinho in 2005 (shown below, left).[1] The soundtrack actually used in this video series is a sped up version of this orginal song.

On the other hand, the dance is taken from Child President which is one of the 20th episode of the Japanese TV animation series of Azumanga Daioh, and it was first aired in 2002 (shown below, right). The original scene is : Tomo is wagging her finger with one hand on her hip while chaffing Chiyo about she is childish.