SM Entertainment has kept us fan boys and girls waited long enough - it’s time for some more f(x)! This time the girls are back with a more flashy image and incredibly…highlighted new hairdos.

]f(x) finally released their MV teaser called ‘NU ABO’. This is what it stands for: U is like how it sounds new and ABO are their blood types. Now put them together, NU ABO. Probably, they have “new blood’ or fresh in the Korean pop scene.

Repeat it a few times to stare at the new concept while you can cause the full MV isn’t gonna arrive until May 4th!

Source: Popseoul