Rapper Defconn may currently be known as one half of 'Hyungdon & Daejun' and co-host of 'Weekly Idol', but before that duo, he's had a long career as an underground rapper and solo artist since 2001. 

And now he's coming back with his solo album after 4 years since his last solo release in 2011. On April 6, Defconn uploaded the above mysterious photo of himself on his official Twitter with the caption, "It's been four years! I'll start telling the full details starting tomorrow." His Twitter profile description also says, "NEW ALBUM soon!"

Also, Right before he uploaded the photo, he tweeted, "Preparing something new and revealing it is always makes me happy and nervous," and "I ask for a lot of interest."

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Are you looking forward to Defconn's solo comeback? Stay tuned for more details!