641, born in Chongqing on July 21, 1998, is a male singer, songwriter, music producer and designer in mainland China. In 2016, he began to release his own music samples on the Internet. In 2019, he released his first regular album revolutionary, and in 2021, he released his second regular album twenty second century. Source of stage name: in Chongqing, "641" is similar to "Luo Shiyi", so Luo Shiyi uses "641" as a stage name and a foreign name. Early experience: Luo Shiyi was born in Chongqing on July 21, 1998. When he was still in primary school, he was very fond of writing comics and novels. When he was in junior high school, he loved track and field, basketball and other sports. In the first year of junior high school, he learned music theory and guitar. At the same time, he also learned pop ing and other dances with a street dance teacher. When I was in the second grade of junior high school, I began to try to create music lyrics and songs, but I never liked singing. When I met other musicians in high school, I formed a band with them to perform on the stage. At that time, I began to arrange music.