On the June 22nd airing of 'Choi Hwa Jung's Power Time', KNK talked about how their official fan club name 'Tinker Bell' was created. 

Their fan club name Tinker Bell was created just 3 months after their debut, and the members shared the cute story behind it. KNK explained, "We were watching the movie 'Tinker Bell' and came to think that our fans are our tinker bells that protect us. So that's how the name was chosen." 

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How sweet! Are you KNK's Tinker Bell?