Instead of just "Number 9", the girls will also be promoting the medium tempo song "I Know the Feeling". "I Know the Feeling" is a sad song with an addicting melody line and heartful lyrics.
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The concept of "I Know the Feeling" is completely different from "Number 9", as it shows the girls wearing long dresses with a side split.
Both MVs for "Number 9" and "I Know the Feeling" will be released on the 10th, so stay tuned!