f(x) greets fans through their interview on Arirang's 'Pops in Seoul'

f(x)'s Krystal, Victoria, Amber, Luna, and Sulli are here to greet fans and introduce their latest song through Arirang's 'Pops in Seoul'!

Along with that are the behind-the-scenes from their 'Red Light' MV filming so check out their next clip below~

♥ More about f(x)'s 'Red Light' here