Question: The star that played the role of Jamie Bartlett is a younger sister to who? 

Context articles: SA's Got Talent (season 7)
Kasumi Ishikawa
Anna Thangi
Read It and Weep
Zorka Janů
Kay Panabaker
Song Hye-rang
Jamie Bartlett
Ashlee Simpson
Jamie Bartlett (journalist)

In 2016 SA's Got Talent returned for another season.
 Tol Ass Mo was named new host.
 DJ Fresh and Shado Twala returned to the judging panel and a new judge, Jamie Bartlett, was added to the judging panel.
Kasumi Ishikawa (石川 佳純 , Ishikawa Kasumi ) (born 23 February 1993) is a female Japanese table tennis player.
 Her entire family, which consists of her father, mother, and younger sister, play or used to play competitive table tennis.
 She has a younger sister, Rira, who is also a professional table tennis player, while her mother Kumi Ishikawa is her current coach.
 She is a left-handed shakehand holder who primarily uses speedy top-spins and loops in offensive play.
Anna Thangi (Kannada: ಅಣ್ಣ ತಂಗಿ ; English: Elder brother, Younger sister ) is a 2005 Indian Kannada-language drama film starring Shivarajkumar and Radhika in the lead roles.
 It depicts the story of a elder brother's love and affection for younger sister.
 The film is directed and written by Om Sai Prakash and produced under Vijay films banner.
 The film, upon release, met with positive reviews and was remade into Telugu language with the title "Gorintaku".
Read It and Weep is a 2006 Disney Channel Original Movie which premiered on July 21, 2006.
 It is based on the novel "How My Private, Personal Journal Became A Bestseller" by Julia DeVillers.
 Sisters Kay and Danielle Panabaker star as Jamie Bartlett and her alter ego Isabella (Iz or Is), respectively.
 Both sisters have starred in previous Disney Channel films: Kay in "Life Is Ruff" (2005), and Danielle in "Stuck in the Suburbs" (2004), like "Read It and Weep", those films also premiered in July in their respective years.
Zorka Janů (born Zora Babková) (Štěchovice, 9 July 1921 – Prague, 24 March 1946), a Czech film actress, was the younger sister of the legendary cinema star Lída Baarová.
 When she was 12 years old, she appeared in the movie "Madla z cihelny" (Brickmaker's daughter, 1933) alongside her sister who played the principal role.
 She studied the dramatic art at the Prague's Academy of Performing Arts.
Stephanie Kay Panabaker (born May 2, 1990) is an American actress, voice actress, and zookeeper.
 She is best known for her roles as Jenny Garison in the 2009 reboot of "Fame", Debbie Berwick on "Phil of the Future" and Nikki Westerly on "Summerland".
 She is the younger sister of Danielle Panabaker.
Song Hye-rang (born 1935) is a North Korean defector and author.
 Her father was a wealthy South Korean landowner who moved to the North for political reasons, while her mother was an editor of the official North Korean newspaper "Rodong Shinmun".
 Song's younger sister Song Hye-rim, a popular actress, secretly began an affair with Kim Jong-il against his father Kim Il-sung's wishes in the late 1960s or early 1970s, which culminated in Hye-rim's forced divorce from her husband; Hye-rang first learned of the situation on 10 May 1971, when Kim came to her residence in the middle of the night and informed her that he had impregnated her younger sister.
 Five years later, Hye-rang would become responsible for raising Kim Jong-nam, the son resulting from that pregnancy; his father was unwilling to let him attend school for fear that the secret of his parentage would be revealed.
 Hye-rim moved into the household; she also brought her own son Ri Han-yong and daughter Ri Nam-ok to live with them, so that Jong-nam would not be lonely.
 Their lives were carefully managed by Kim Jong-il to ensure that his father would not find out about his continuing affair; they spent most of their time at residences in east Pyongyang or Chungsangdong, occasionally travelling overseas to Geneva and Moscow.
Jamie Bartlett is a South African actor best known for his role as the wicked puppet master, David Genaro on Rhythm City that is aired in many African countries such as Kenya, Zimbabwe, Botswana, Cameroon and Ghana.
Ashley Nicolle Ross (née Simpson; born October 3, 1984), known by the stage name Ashlee Simpson, is an American singer-songwriter and actress.
 The younger sister of pop singer and actress Jessica Simpson, Ashlee began appearing in television commercials at the age of 15.
 She later pursued a career as an actress, and had a recurring role on the family drama "7th Heaven".
 Her breakout came following her appearance on the reality show "" (2003–05), which focused on her sister Jessica and her then-husband Nick Lachey.
 While working on her debut studio album, Simpson became the star of her own spin-off reality series, "The Ashlee Simpson Show" (2004–05).
 The show became a ratings hit, and earned Simpson widespread recognition.
 Like her sister before her, Simpson became the center of considerable media attention, much of which focused on her relationship with musician Ryan Cabrera.
Jamie Bartlett is a journalist and tech blogger for The Telegraph and Director of the Centre for the Analysis of Social Media for Demos in conjunction with The University of Sussex.