Leni Lan Yan, also known by her stage name Crazybarby, has developed her career in Hong Kong as an actress,a pop singer and a model. Born in Shanghai, she moved to Hong Kong at age 18 and took her stage name Crazybarby as a composition of her legal given name Crazy and her family given nickname "Barby".

Leni Lan graduated from the Hong Kong Academy for Performing Arts, and Acting Department of the Shanghai Theatre Academy. She was once Jackie Chan's disciple, targeting international markets as a rising artist under Hong Kong's JCE Entertainment Ltd. EMP.