There are at least two artists that are known by this name:
1) MiChi (born Michiko Sellars, on April 7, 1985 in Birmingham, England) is a Japanese pop singer of English-Japanese ancestry. When she was two, her family moved to Kobe, Japan before returning to England in 1995. Determined to be a singer, she performed in an acoustic duo, and soon after returned to Japan when she was 18. The following year she met Tomokazu Matsuzawa (producer for acts such as Mika Nakashima, Miliyah Kato, SOULHEAD and CHEMISTRY).