The Deco*27 and Hololive Production collaboration was announced on December 1, 2022. The first volume of the collaboration consists of 2 albums, available in limited and regular editions. One features 10 new songs produced by Deco*27, and the second features 10 cover songs. The first volume is set to be released on March 15th 2023, four days before the holo*27 live show at HoloFes 4. During an interview with Real Sound, DECO*27 shared that the Holo*27 project started after he approached Hololive with the idea of hololive talents singing a number of songs produced by himself.