Twins is a Hong Kong pop duo formed in 2001 by Emperor Entertainment Group (EEG) and composed of Charlene Choi and Gillian Chung.

In February 2008, Twins temporarily separated following the Edison Chen photo scandal involving Chung.

[3] Gillian Chung had also worked as a part-time model during one of her summer vacations in Hong Kong.

[6] According to Mani Fok, EEG's plan for Twins was to emulate the success of the Japanese duo KinKi Kids.

As part of album promotions, Twins collaborated with MSN to make personal pages and web games.

[4] In addition, EEG bundled gifts and coupons with the EP, so that teenage album owners got more value from their purchase by receiving things like hair care products and vouchers for dance courses.

Disc one, CD contained 10 tracks with single "Er Ren Shi Jie Bei".

With the brand new look, Twins released 1 disc 10 track fourth album named Evolution in September 2003.

Included are: Six mini posters measuring 15" x 20" Twins Effect 2 beverage coaster Lucky draw scratch-and-win card for the music VCD.

Included is the theme song for Twins Effect II, (Love Is Invincible, seventh track).

Tracks "One Time Not Twice" and "I Really Want to Love Him" were nominated, and album Around the World with 80 Dollars won Top 10 Gold Songs at the Hong Kong TVB8 Awards, presented by television station TVB8, in 2006.

At the 2006 Hong Kong Entertainment Awards ceremony Choi tearfully acknowledged that there have been criticisms of the Twins' singing abilities and that she hoped that they could better improve in the coming year.

In September of the same year, Twins embarked on a multi-city North American concert tour, with special guests Sun Boy'Z.

In early January 2008, Twins won two major awards at the 2007 Jade Solid Gold Top 10.

With Gillian deciding to duck out of the public eye, Twins announced its "temporary dissolution" in July 2008.

During the 31st RTHK Top 10 Gold Songs Awards hosted in January 2009, Choi said Twins would return.

[16] On the night of 27 February 2010 the "EEG 10th anniversary concert" was held at The Venetian Macao luxury hotel.

[17] Gillian Chung and Charlene Choi appeared on stage together for the first time in two years to do a small performance for the anniversary concert.

[17] A few days later on 3 March, Twins appeared in public at the Harbour plaza after parading around in a purple Porsche.