Rapper Mad Clown is set to make his hot comeback this month with a featured artist! But who is this mystery artist? 

Starship Entertainment uploaded the above photo on their Twitter with the caption, "#madclown & ?"

Since it's quite hard to figure out where to start with such wide range of possibilities, Starship offered a clue. They stated, "This time, Mad Clown's featuring partner isn't a 'singer' but a 'rapper'. This person will show explosive chemistry with Mad Clown and is ready to properly hit the hip hop scene. You can look forward to it."

There's a ton of hype going on for this upcoming new song as Starship Entertainment is known to release some of the best duet collaborations around. 

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So any guesses? 'Who Is Next'?