|Birth Name||: Wu Ying-Chieh, 吳映潔|
|Stage Name||: Gui Gui 鬼鬼|
|Other Name||: Emma Wu|
|Born||: 11 August 1989 Taiwan, Republic of China|
|Occupation||: Singer, Actress, Commercial Model|
Wu Ying Chieh 吴映洁, 吳映潔 or Emma was born 11 August 1989 in Taiwan Keelung, Republic of China better known by her stage name Gui Gui (鬼鬼), is a Taiwanese Mandopop singer and actress represented by Polyland International Entertainment.