Morning Musume.'21 will release their new album "16th~That's J-POP~" on March 31. 

The group's 16th album will feature a total of 15 tracks which include their seven singles, seven brand new songs written and composed by Tsunku♂, and "Hey! Unfair Baby," which the group performed for the first time during their 2019 fall tour. The Limited Edition will come with a Blu-ray disc containing footage from their secret live.

On the album, Tsunku♂ commented, "I titled their 16th original album '16th~That's J-POP~' thinking that this is what J-POP should be. As a female vocal group that represents Japan, I am confident that we can deliver this album to people all over the world saying, 'If you want to listen to J-POP of 2021, please take this.'"