A Pink�are here to have you guessing about the members of their upcoming sub-unit with an audio teaser!

We were able to figure out the members of the unit were�Bomi�and either�Na Eun�or�Namjoo, or all three of them! And with the audio teaser today, the girls tweeted, "Can we try to figure out who the members are?" having fans throwing in their best guesses.

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