A Pink talk about their innocent concept and new title song

A Pinkappeared onSBSPowerFM's 'Kim Chang Ryul's Old School' on October 18 and talked about their concept and latest song.  

The girls have done the innocent concept their whole career.  About this,Eunjisaid,"If we discard that concept, it'll feel like we're retiring." Hearing this, DJKim Chang Ryulgently argued,"Eunji's solo album gave off Eunji's vibe rather than A Pink's, so that was nice. There is the innocent concept, but I think it'd also be good if you did other things, too."