Towards the end of 2008, Choi further expanded her career, entering new fields of the entertainment industry.
As an entertainer, not only is she an actress and singer, but she is now a theater star.
In the musical, Knight Star, she stars as the female lead Rose.
Acting as her lover, she has finally reunited with Jimmy Lin after seven years.
Lin first collaborated with Choi in her first series The Monkey King: Quest for the Sutra when she first entered the industry.
Other stars in the musical include Julian Cheung, and Alice Liu.
The musical served as a promotional event for the Chivas company to expand in China with their "Live with Chivalry" campaign.

Choi's first musical collaboration as a solo singer with another artist was the duet Little Dimples, released in late September 2008, which she performed with JJ Lin.
The song received six awards in the remaining three months of 2008.

Choi released her debut solo album Two Without One on 9 April 2009.
In less than one week, the album sold 10,000 copies in Hong Kong and has been certified "Gold" in Hong Kong.
In less than a month, the album sold a total of 30,000 copies in Hong Kong and was certified "Platinum".
Due to high sales and demand, a second version of the album is slated to be released on 6 May as a limited edition with 5,000 copies available.

Following the success of Two Without One, Choi released her next EP, titled Another Me, on 15 October 2009.
Consisting of five tracks and three music videos, the overall theme of the EP is an evolving process as an individual.
The release of Another Me marked new territory for Choi with a black-and-white cover and a largescale photo exhibition open to the public.
As with Two Without One, Another Me was also certified "Platinum", selling nearly 60,000 copies in Hong Kong, in addition to high sales in Asia and overseas.
Choi's success as a solo female singer in 2009 was best displayed at the 2009 IFPI HK Top Sales Music Awards, where she was awarded "Top 10 Best Selling Hong Kong Singers of 2009".
In addition, Two Without One and Another Me were each awarded "Top 10 Best Selling Cantonese Albums of 2009."

Following her success in 2009 as a solo singer, Choi released her debut Mandarin album As A Sa in 2010.
With more than HK$1 million spent on producing the album, As A Sa was released across China on 15 June.
Consequently, Choi launched her country-wide promotional tour with a multitude of mini-concerts, autograph sessions, performances, recorded television programs, national radio interviews, and talk shows.

Choi has released her third Cantonese album Beauty Remains on 15 October 2010.
Towards the end of 2008, Choi further expanded her career, entering new fields of the entertainment industry. As an entertainer, not only is she an actress and singer, but she is now a theater star. In the musical, Knight Star, she stars as the female lead Rose. Acting as her lover, she has finally reunited with Jimmy Lin after seven years. Lin first collaborated with Choi in her first series The Monkey King: Quest for the Sutra when she first entered the industry. Other stars in the musical include Julian Cheung, and Alice Liu. The musical served as a promotional event for the Chivas company to expand in China with their "Live with Chivalry" campaign.
Choi's first musical collaboration as a solo singer with another artist was the duet Little Dimples, released in late September 2008, which she performed with JJ Lin. The song received six awards in the remaining three months of 2008.
Choi released her debut solo album Two Without One on 9 April 2009. In less than one week, the album sold 10,000 copies in Hong Kong and has been certified "Gold" in Hong Kong. In less than a month, the album sold a total of 30,000 copies in Hong Kong and was certified "Platinum". Due to high sales and demand, a second version of the album is slated to be released on 6 May as a limited edition with 5,000 copies available.
Following the success of Two Without One, Choi released her next EP, titled Another Me, on 15 October 2009. Consisting of five tracks and three music videos, the overall theme of the EP is an evolving process as an individual. The release of Another Me marked new territory for Choi with a black-and-white cover and a largescale photo exhibition open to the public. As with Two Without One, Another Me was also certified "Platinum", selling nearly 60,000 copies in Hong Kong, in addition to high sales in Asia and overseas. Choi's success as a solo female singer in 2009 was best displayed at the 2009 IFPI HK Top Sales Music Awards, where she was awarded "Top 10 Best Selling Hong Kong Singers of 2009". In addition, Two Without One and Another Me were each awarded "Top 10 Best Selling Cantonese Albums of 2009."
Following her success in 2009 as a solo singer, Choi released her debut Mandarin album As A Sa in 2010. With more than HK$1 million spent on producing the album, As A Sa was released across China on 15 June. Consequently, Choi launched her country-wide promotional tour with a multitude of mini-concerts, autograph sessions, performances, recorded television programs, national radio interviews, and talk shows.
Choi has released her third Cantonese album Beauty Remains on 15 October 2010.
Charlene Choi