The ladies of 4minute have been delivering daily teasers over the past week, and they've just upped their comeback momentum with the release of their MV teaser! The title track is called "Heart to Heart", and the MV teaser hints at a sweet turned sour relationship between member HyunA and bad boy CNBLUE's Jungshin. It's a short prelude of what's to come before the full song gets released on March 29th. Source: Star News via Nate