EXID's surprise present has been revealed to be Hani and Solji's duet song. 

According to music chart associates, Hani and Solji will be releasing the song "Only One" on March 3. 

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The surprise has finally been revealed after continuous teasers by EXID. On February 26, a mysterious teaser of a cell phone with background music was released. Viewers assumed an upcoming song release from the music in the short clip. 

Following the first mystery teaser, another short clip was released on March 1. In this clip, Hani appeared taking a self-camera video, and talking about a surprise on the way. 

Many fans were curious about the upcoming surprise. Now the answer has been given. Hani and Solji will treat fans as they sing a duet song "Only One".