After successfully wrapping up their promotions for "Mr. Chu",  A Pink have dropped a mysterious teaser image that begs the question: What's next for these lovely girls?

SEE ALSO: 'Knowing Brothers' reveals teaser for next week's episode featuring Apink

A Pink tweeted the image as seen above along with a caption that reads, "A Pink. Pink BnN", hinting at a possible comeback, sub-unit, a reality show, or something entirely different! If it is indeed a sub-unit, fans may finally get to see A Pink try something other than their signature cute, girly concept.

What do you think this means?

[#????] #Apink #PinkBnN pic.twitter.com/8aGQRvZOqw

� Apink ???? (@Apink_2011) June 20, 2014

Tip: Juliana