==Anecdotes==
* '''Motto:''' What's your number? Hello, we are SECRET NUMBER!
*They explained that their name stands for the special numbers every person has in their passwords and PIN codes, such as their birthdays or some other special number, and they wanted to have this kind of special meaning for the public.<span class="reference" id="cite_ref-showcase_6-0"></span> They also explained that the five stars in the box of their logo represents the five members.
==Must-watch-Legendary Videos==
• 'Who Dis?' MV<br />-https://youtu.be/mkYwq_CKpyw • 'Who Dis?' MV Reaction<br />https://youtu.be/RBLu9XgL_Xw • 'Who Dis?' Debut Stage M COUNTDOWN<br />https://youtu.be/YQW722b2dQM • 'Who Dis?' Dance Practice (Moving ver.)<br />https://youtu.be/HFt5y9UD4V4 • 'Holiday' Dance Practice<br />https://youtu.be/yOXPifAJkmY • 'Who Dis?' Album Unboxing<br />https://youtu.be/C5YJUKpB4dA • Dua Lipa & Blackpink's 'Kiss and Make Up' Dance Cover<br />https://youtu.be/UrTEEgY3NmU • Jennifer Lopez's 'Medicine' Dance Cover<br />https://youtu.be/omaUdWADmcg • SECRET FUN<br />https://www.youtube.com/playlist?list=PLGNPdwYCtoYtr11ZXxUE2UqmelF5oWmxt
==Awards==