Yumi Nakashima (中島優美, Nakashima Yumi; born December 1, 1979) is a Japanese vocalist, guitarist and singer-songwriter. She was the guitarist and main vocalist in the rock band GO!GO!7188 and is the founding member of Chirinuruwowaka. Nakashima has also released two solo albums since 2004.
Source: “Yumi Nakashima”, English Wikipedia (CC BY-SA 4.0), excerpt