Question: Ann Mui was the older sister to what singer and actress who had major contributions to the Cantopop music scene?

Context paragraphs:
FAMA: FAMA (農夫), literally meaning farmer in Chinese, is a Hong Kong hip hop group founded by DJ Tommy consisting of members C-Kwan and 6-Wing in 2000.  They are part of the hip-hop wave in the mainstream cantopop music scene, which was initiated by DJTommy and LMF in the early - mid-2000s.

Miki Yeung: Miki Yeung (born 14 February 1985) is a Hong Kong cantopop singer and actress.  In 2002, she joined the cantopop music idol group Cookies.  In 2005, her film "b420" was awarded the Grand Prix Award: The 19th Fukuoka Asian Film Festival.  Currently she is the TV hostess of the programme "" for the J2 channel.  In 2012, she signed an artiste contract with TVB.

Ann Mui: Ann Mui (梅愛芳) (13 January/12 December 1959 – 16 April 2000) was a singer and actress.  She was the older sister of Hong Kong actress and singer, the late Anita Mui and two brothers.  Her mother remarried after her father died.  Despite not being twins, their singing voice is strikingly similar, with the only way to tell them apart was the hand in which they hold the microphone.  She is best remembered for her supporting roles in many movies, especially Jackie Chan's "Police Story 2".  She died of cervical cancer, which was proven to be genetic as Anita later died for the same reason.  Ann left behind a husband, Lap-Tak Poon, and two sons.  Like Anita, she has a dramatic contralto singing voice, which is a rarity in Chinese pop music.

Alan Tam: Alan Tam Wing-lun MH (; born 23 August 1950) is a Hong Kong singer and actor.  He played a major role in developing the Cantopop scene in the 1980s as he was known for singing romantic ballads with modern arrangements.  Today, he is still active in the music and film industry, releasing new albums on a regular basis.  Since the late 1980s, he has served as a mentor for the cantopop music industry, earning the nickname the "Principal" or "Principal Tam".  Today he is regularly seen across the media in Hong Kong, mainland China, Taiwan, and various parts of East Asia participating in all types of entertainment related events and charity activities.  As of 2013, Alan Tam has launched total 115 solo albums and has sold over 35 million records worldwide, he is also holding the record for having the most concerts in Hong Kong as a solo artist.

Dry (group): Dry is a Cantopop music duo that formed between 1997 and 1998 with Mark Lui () and Stephen Fung () as bandmates.  The group was formed when Mark decided to create a band with himself and another person.  After meeting Stephen through friends introductions, they agreed to start a music duo with Universal Music.  A year after they formed, they decided to part ways to pursue different career paths.  Mark continued as songwriter to many cantopop artists such as Leon Lai and Miriam Yeung.  While Stephen started his career in acting and later shift toward to directing and producing Hong Kong films such as Enter the Phoenix.

Jody Chiang: Jody Chiang or Jiang Hui (), born Jiang Shuhui (), is a Taiwanese popular singer.  She began recording in the 1980s and retired in 2015, having released 60 albums.  Her trademark ballads and folk songs are typically sung in Taiwanese.  Her role in Taiwan's popular music scene is often compared to that of Teresa Teng.  She is the older sister of Chiang Shu-na.

Rosanne Wong: Rosanne Wong (黃婉君, Wong Yuen-Guan, b. 30 June 1979) is the member of a Hong Kong cantopop music group 2R alongside younger sister Race Wong.

Anita Mui: Anita Mui Yim-fong (; 10 October 1963 – 30 December 2003) was a Hong Kong singer and actress making major contributions to the Cantopop music scene and receiving numerous awards and honours.  She remained an idol throughout most of her career, and was generally regarded as a Cantopop diva.

Leslie '89: Leslie '89 is a cantopop album by Leslie Cheung released in 1989 by Cinepoly Records of Hong Kong.  It was also his supposed penultimate album before the final album "Final Encounter" (he had planned for retirement from the Cantopop music scene, although he made a return in 1995) also released in 1989.  It is also sometimes known as 侧面 or "Side Face".

George Lam: George Lam Chi Cheung (born 12 October 1947), also known professionally by his surname Lam, is a Hong Kong-based veteran Cantopop singer, singer-songwriter, music producer and actor.  He has remained popular for four decades.  Lam writes a lot of his own songs and occasionally writes for other artists.  Many of the songs written by him have become classics of Cantopop.  Sometimes he covers other people's songs.  He is also the producer for most of his own albums.  In terms of his vocals, he excels in a wide range of music - very powerful in fast rhythmic numbers, and very heartfelt in ballads.  In recognition of his contributions to the music scene, Lam was awarded numerous awards including the Golden Needle Award in 1994, the CASH Hall of Fame Award in 2003, the J.S.G. Lifetime Achievement Award in 2015 and the RTHK Hall of Fame Award in 2016.

Supporting paragraphs: Ann Mui Anita Mui
Answer: Anita Mui