Rookie group C-REAL teased their fans with another new, mysterious image that may reference a potential comeback.

NAP Entertainment posted the above picture to their Twitter account earlier today, with the mysterious caption, "??? (C-REAL) .. ?? (Lenny) .. ?? (Re Dee) .. ?"

The photo adds C-REAL member Re Dee to the image posted yesterday of just Lenny, leaving a lot of white space for what many fans assume to be the spaces for the pictures of the remaining members.

What do you think it could be about?