Fiona Sit Hoi-Kei (Traditional Chinese: 薛凱琪; Simplified Chinese: 薛凯琪), also known as Fifi, born August 11, 1981, is a female Cantopop singer and actress from Hong Kong. Biography: Fiona Sit attended Island School and continued her higher education at the City University of Hong Kong[ until 2004. Her first language is Cantonese and she can speak fluent English and French. She mastered Mandarin after living in Taiwan for one year, even creating her first Mandarin album, It's My Day.