Tours' surprise pre-release teaser for "Head Shoulders Knees Toes"

Tours announced their comeback on October 13th with their 4th mini album 'Play hard'!
Today, the pre-released song 'Head Shoulders Knees Toes' is being released as a surprise!
A teaser video featuring many dancers and a strong feeling that is different from the refreshing concept of Tours so far!
I'm really looking forward to what kind of pre-release song it will be😊