On February 18, Rain officially announced that the female artist to collaborate for the title track of his new album is Changha through his YouTube channel ŌĆ£Season B Season.ŌĆØ After helping Kim Young Kwang and Lee Sun Bin promote their new movie Mission Possible, Rain was seen visiting ChunghaŌĆÖs label to personally persuade her into a collaboration. He even played the new title track for her, continuing his ŌĆ£activeŌĆØ persuasion. At the end of the clip, a teaser image of ŌĆ£Why DonŌĆÖt We (feat. Chungha)ŌĆØ was unveiled, raising expectations with their intense presence under the colorful lighting.

Rain and Chungha, who have a common denominator of being KoreaŌĆÖs leading solo artist, dance singer, and hottest stars leading trends in various fields, will be showcasing their best chemistry as well as their best performances through this collaboration. RainŌĆÖs new mini-album PIECES by RAIN represents various art ŌĆ£worksŌĆØ and five different ŌĆ£piecesŌĆØ that make up artist Rain. It will include a total of 5 songs, and the title track will be ŌĆ£Why DonŌĆÖt We (feat. Chungha).ŌĆØ PIECES by RAIN will be unveiled on March 3 at 6 pm KST. ┬Ā Source (1)

Rain   Chungha s Collaboration Song  Why Don t We  to Be Released on March 3 - 10