People
Calvin Choi Yat-Chi
- Name: Calvin Choi Yat-Chi
- Birthday: 1965-01-04
- Also known as: 蔡一智,Calvin Choi,''Grasshopper'',Calvin Choy,Sir One One
- Place of birth: British Hong Kong
- Popularity: 1.45
Biography:
Eldest among the 3 Grasshopper members. He has always been regarded as the most creative one and is also producer for various Hong Kong artists. Grasshopper is still active in the music industry, especially performing in concerts.
