After debuting with "Double Up" last year, rookie group Two X seems to be gearing up for their comeback!

On a post released on J.Tune Camp's official Twitter, the members of Two X can be seen posing in a series of montage pictures. "Coming Soon! 2nd Single~!" their agency posted. "Preparing for their new album in the practice room sending you Two Heart for all Doublings!"

In addition, the post teased viewers about a 'hidden picture' - or two - hidden within the montage. "Find the hidden picture of a brother group!" they posted.

Can you find the hidden pictures within Two X's montage?