4minute reveals second teaser video for "Volume Up"

After revealing two teaser photos of different concepts, the girls of 4minute have revealed their second teaser video for "Volume Up"

The official YouTube description of the video says: "4MINUTE will regain their throne with mind blowing performance and unique tunes. Their 3rd mini-album is packed with unique songs that will catch your ears at once! 4MINUTE’s highly anticipated mini-album 'VOLUME UP' will be released 04.10.12".

The groups third mini-album "Volume Up" will be released on April 9th. Check out the second teaser, after the jump.