Chyi Yu (Chinese: 齊豫; Pinyin: Qí Yù), born October 17, 1958, is a Taiwanese singer. She is also the older sister of Taiwanese singer+songwriter Chyi Chin, and is best known for her 1979 hit, "The Olive Tree" (橄欖樹). Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.