One of the most interesting aspects of the four-man Japanese vocal pop rock act GReeeeN is that none of the members have ever revealed their faces, claiming the notoriety would interfere with their dentistry work. They have never performed in public, and make sure to obscure their faces in all photographs and television appearances. The project started in 2002 when members Hide and Navi joined forces. Two years later they teamed up with Soh and 92 who brought a hip-hop element to the group’s musical soundscape. While each member was studying dentistry, they recorded and released an independent EP in 2006. They released their full-length debut, A, Domo. Hajimemashite, which rose to number 2 on the Japanese albums chart, powered by the smash single "Ai Uta." They followed up their successful debut with a pair of chart-topping albums—2008’s A, Domo. Ohisashiburi Desu. and 2009’s Shio, Kosho. Together, those albums spun off three number 1 hits, including 2008’s Chaku-Uta Song of the Year winner "Kiseki." The song would eventually win notoriety from the Guinness Book of World Records for being the best-selling download single in the history of Japan. They would continue to release Top 10 albums and songs through the next decade, such as Iine!(´・ω・｀)☆ (2013), Ima kara Oyayubi ga Kieru Tejina Shimasu. (2014), En (2016), UreD (2018), and Dai Ku (2019). In 2024, the group announced they were changing their name to GRe4N BOYZ following their departure from the agency High Speed Boy. "Senkou Hayabusa", their first release under the new moniker, arrived later that year, quickly becoming a hit on Japanese radio. The second full album as a GRe4N BOYZ, A, Domo. Mata Oaishimashita Ne. A, was released on February 25, 2025.
