黄色5 (Romaji: Kiiro 5 English: Yellow 5) was one of the three Hello! Project shuffle units formed in 2000, along with Akagumi 4 and Aoiro 7. They released the single 黄色いお空でBOOM BOOM BOOM (Kiiroi Osora de BOOM BOOM BOOM; English: Boom Boom Boom in the Yellow Sky)
