JungGiGo, who received fans' love through his duet song "Some" with Soyou, announced a surprise comeback in April.

Yesterday, Starship Entertainment posted a teaser image of JungGiGo's comeback album on their official Twitter.

In the image, JungGiGo poses slouched in an armchair. There is an empty chair next to JungGiGo, and the words "WHO'S NEXT?" hovers above the chair.

Net users claimed: "JungGiGo looks different", "I wonder who his next partner will be", "If it's a rapper, then it must be a guy!"

Starship Entertainment explained: "JungGiGo will collaborate with a rapper beyond imagination. They plan to make a comeback with a HIPHOP-BUSTER project in mid-April; please show your support!"

Meanwhile, JungGiGo remains busy recording his new song.