In honor of the fifth “birthday” of Megpoid GUMI (a digital singer from the Vocaloid franchise), Konami’s BEMANI division is starting a special event on the 26th of June, which will bring some of GUMI’s most popular songs to various BEMANI games. You can see which games will get which songs here. Especially SOUND VOLTEX II will receive a lot of new content during this event, including remixes by IOSYS, kemu and 40mP.
Dance Dance Revolution already got an update with two GUMI songs today (selectable as a folder in the main menu). Two more will follow on the 26th.