When I first joined ファンポップ I went to my friend's プロフィール to add her, and I saw the colorful icon. I clicked on it (yes, the color caught my attention) and thought it was interesting. I guess あなた can say I was kind of stalking her.
The first time I joined, I joined a few clubs, and realized I could get a キャップ for that, so I was just joining ランダム クラブ when i thought maybe there was a club called Random, so I searched it and sure enough there it was.
Well I found it through people on the TDI ファン club, whenever I went onto their profiles I saw this アイコン and eventually I had to go check it out :P ランダム 写真 I found on da interwebz