Rainbow's agency revealed a dance video online for the first time.

Yesterday, they released their "Tell Me Tell Me" video online through Naver Music. This video revealed their dance practice session and showed off their focus point choreography moves.

This video also revealed the inside of their agency, gaining much attention. Their agency was known to be a house that was remodeled into their practice rooms. With this video reveal, it was the first time the public was able to see the interior.

Internet users commented, "First time to see the inside", "It looks so different" and "It's so clean and big."

On the other hand, Rainbow is busy with their "Tell Me Tell Me" activities.