Twins is a prestigious female singing group in Hong Kong, composed of Charlene Choi (Ah Sa) and Gillian Chung (Gillian).

So, why are they called SA and Gillian? SA, Gillian? Charlene Choi and Gillian Chung are two members of TWINS. Charlene Choi’s English name is Charlene, but many people pronounce it wrongly and pronounce it as Salene. Over time, she became SA.

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And Chung Xintong became Gillian because the abbreviation of Gillian's English name is Gil, which is the same as "jiao".

Twins social activities On December 7, 2002, Twins participated in the "Emperor's 3rd Anniversary Charity Concert and Stars Tribute to Luo Wen's Golden Song Concert".

On October 30, 2003, Twins participated in the press conference of the "Generations Free of Hepatitis" Beijing charity concert in response to the strong support for the "Generations Free of Hepatitis" campaign; on November 22, Twins participated in the "Generations Free of Hepatitis" charity concert in Beijing.

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On May 17, 2004, the Twins attended the "Cotton Love Day" charity performance in Tsuen Wan, Hong Kong, to raise funds for Po Leung Kuk; on June 3, they attended the inauguration ceremony and press conference of the "New Paper Charity Foundation" in Hong Kong, serving as the "New Press"

The newspaper charity fund ambassador will help raise funds to help people in need in society; on September 14, Twins attended the press conference of "Starlight Shining in Baoliang", raised funds to help relevant organizations, and even sent mooncakes to their father-in-law.

Mother-in-law celebrates the Mid-Autumn Festival.

On September 2, 2005, Twins attended the "Love-filled Donghua Charity Gala" as Donghua Love Ambassadors.

On May 27, 2006, the Twins attended the "Po Leung Kuk Friendship Day" event held at the Yiguan; on September 9, they attended the TVB fundraising program "Po Leung"; on October 2, at the Queen Elizabeth in Wan Chai, Hong Kong

The gymnasium participated in the "903 All Stare Charity Basketball Game"; on November 3, it attended the "China Charity Miles" large-scale concert hosted by the China Charity Federation and recorded and broadcast by CCTV in Liuzhou, Guangdong. The proceeds were used to build 20 schools in the old district.

Love Primary School, donated and built more than 100 charity libraries, and expressed condolences to more than 2,000 veteran Red Army soldiers and their families; on December 9, attended the large-scale charity fundraising program "Happy Donghua".

On November 20, 2007, Twins attended a charity concert and performed interactively with children on stage.

On January 5, 2008, Twins attended the program "Charity Star Hui Renji Night"; in early September, they went to the Sichuan earthquake area to work as volunteers and interact with children in the disaster area.

Performing Arts Love Yushu Caring Action From July to September 2011, Twins held the two-month Twins3650 charity signing event, using music to deliver happiness and care to more people, and raised more than 100,000 donations.

Teenagers in poverty-stricken areas purchased musical instruments, donated to build music classrooms, and donated books and some modern teaching equipment; on November 12, attended the "Yang Shoucheng Shunping Care Center for the Elderly" press conference held by Emperor Group Chairman Yang Shoucheng in Beijing, and donated money to build Shunping Care Center for the Elderly.

The donation check of RMB 10 million from the Ping Guan Ai Elderly Center was handed over to Shun Ping County officials; on December 24, a charity singing was held at Harbor City, Canton Road, Tsim Sha Tsui, Hong Kong, and the ticket proceeds were donated to the Hong Kong Blood Cancer Fund.

In January 2012, Twins jointly organized the "Love, Starting from Music" Love Music Classroom Aid Project 2011 charity concerts in Guangdong, Jiangxi, Hubei, Guizhou and Yunnan provinces, and the proceeds were distributed nationwide.

Donations to music classrooms to help children in poverty-stricken areas; on March 14, Twins opened a second-hand clothing store in Causeway Bay, Hong Kong, selling second-hand clothing as a charity sale, and donating the proceeds after deducting costs to the food bank; on May 18, on Hunan Satellite TV

The program "Sound of the Sky" used singing to raise funds, donated 50,000 yuan in charity, and sent school buses to primary school students in mountainous areas; on September 1, they held placards to participate in the auction at the Harper's Bazaar Charity Night to offer love to poor children.

On April 27, 2013, Twins participated in the Ya'an Earthquake Resistance Theme Charity Gala held at the National Aquatics Center in Beijing.