On December 6, shortly after prosecutors reported that vote rigging took place during Mnet's 'Produce 101' season 2 in determining the final members of boy group Wanna One, solo artist/Wanna One member Ha Sung Woon took to his official fan cafe to leave a short message. 

In his post, titled, "Just in case", he shared, "I came because I thought that some of you would be worrying. Please don't worry, whatever the case." 

Meanwhile, according to prosecution reports, the staff of Mnet's 'Produce' series manipulated the final results for all seasons by switching up the vote results and rankings during season 1, switching the text message votes of two trainees during season 2, and pre-determining all of the winners of seasons 3 and 4.