[PICTURE] After School’s Nana flashes her back on new “Flashback” teaser

With After School’s much-awaited Korean comeback is just around the corner, Pledis Entertainment spiced up anticipations with some sizzling hot teaser images of member Nana.

On June 19th, Pledis revealed sexy pictures of Nana on After School’s official fan café. The pictures are behind-the-scene cuts on the set of the “Flashback” music video, featuring Nana showing off her sexy back.

After School will first release “Flashback” online on June 20, then release the album offline on the 21st.