BAP debuted in 2012

In May 2011, I went to Korea

I watched MTV The Show recording and watched Lim Jeonghee, Block B, Dal Shabet, Untouchable (and more) perform live on stage

I recently found out that BAP's Himchan was a back-up dancer for Untouchable's song "You You"

Untouchable was performing "You You" when I watched them in MTV The Show

I remember seeing back-up dancers

Which means

I was able to watch B.A.P's Himchan dance live without knowing it

...........................

THE HECK IS THIS