Question: Cinderella and Four Knights had a star that was best known as a member of what group?

Context paragraphs:
DJ Spinderella: Deidra Muriel Roper (born August 3, 1971), known as DJ Spinderella or simply Spinderella, is an American DJ, rapper, producer and actress.  Roper is best known as a member of the hip-hop group Salt-n-Pepa.  Roper's stage name is a reference to the fairy tale character Cinderella.  Roper occasionally appeared in "The Salt-n-Pepa Show", a reality TV series focusing on reforming the group which aired on the VH1 network in 2008.

Johnny Royal: Johnny Royal (born John Michael Herrera, June 12, 1976) is an American musician, film and commercial director, composer, entrepreneur, novelist, and occultist.  Royal is best known as the founding member of the industrial rock band Black Lodge, and as the director of the feature length documentary film, "The Royal Art of Freemasonry", which was filmed over the course of six years and is the first feature length documentary to explore every degree of the Freemasons, including the Master Mason, Knights Templar, and 33rd degrees.

Ahn Jae-hyun: Ahn Jae-hyun (; born 1 July 1987) is a South Korean model and actor.  He is best known for his roles in television dramas such as "My Love from the Star" (2013), "You're All Surrounded" (2014), "Blood" (2015), "Cinderella and Four Knights" (2016) and "Reunited Worlds" (2017).

Jung Il-woo: Jung Il-woo (; born 9 September 1987) is a South Korean actor.  He is best known for his roles in the sitcom "Unstoppable High Kick" (2006), and the television dramas "The Return of Iljimae" (2009), "49 Days" (2011), "Flower Boy Ramyun Shop" (2011), "Moon Embracing the Sun" (2012) and "Cinderella and Four Knights" (2016).

Son Na-eun: Son Na-eun (born February 10, 1994) is a South Korean singer.  She is best known as a member of the South Korean girl group Apink.

Choi Min: Choi Min (born Choi Min-Sung on January 1, 1987) is a South Korean actor.  He is best known for his roles in "The Women of Our Home", "My Dear Cat", and "Cinderella and Four Knights".

Charles Perrault: Charles Perrault (] ; 12 January 1628 – 16 May 1703) was a French author and member of the Académie Française.  He laid the foundations for a new literary genre, the fairy tale, with his works derived from pre-existing folk tales.  The best known of his tales include "Le Petit Chaperon Rouge" ("Little Red Riding Hood"), "Cendrillon" ("Cinderella"), "Le Chat Botté" ("Puss in Boots"), "La Belle au bois Dormant " ("The Sleeping Beauty"), and "Barbe Bleue" ("Bluebeard").  Some of Perrault's versions of old stories have influenced the German versions published by the Brothers Grimm more than 100 years later.  The stories continue to be printed and have been adapted to opera, ballet (such as Tchaikovsky's "The Sleeping Beauty"), theatre, and film.  Perrault was an influential figure in the 17th-century French literary scene, and was the leader of the Modern faction during the Quarrel of the Ancients and the Moderns.

Digital Chaos: Digital Chaos are a professional "Dota 2" eSports team based in the American state of Arizona.  Digital Chaos are best known for being a Cinderella story at The International 2016, which had the largest eSports prize pool in history, where they finished as runner-ups.  The team was founded in 2015.  In April 2017, the organization announced the departure of founding member and owner Shannon "SUNSfan" Scotten, as well as the replacement of the entire roster with former Team Onyx members.

Chris Weitz: Christopher John "Chris" Weitz (born November 30, 1969) is an American film producer, screenwriter, author, occasional actor, and film director.  He is the brother of filmmaker Paul Weitz.  He is best known for his work with his brother on the comedy films "American Pie" and "About a Boy," the latter of which was Oscar-nominated for adapted screenplay.  Weitz directed the film adaptation of the novel "The Golden Compass" and the of "New Moon" from the series of "Twilight" books, as well wrote the screenplay for Disney's 2015 live-action adaptation of "Cinderella" and co-wrote "Rogue One: A Star Wars Story" alongside with Tony Gilroy.

Cinderella and Four Knights: Cinderella and Four Knights () is a South Korean television series starring Jung Il-woo, Ahn Jae-hyun, Lee Jung-shin, Park So-dam, Choi Min and Son Na-eun.  It aired every Friday and Saturday at 23:00 (KST) from August 12 to October 1, 2016.

Supporting paragraphs: Cinderella and Four Knights Son Na-eun
Answer: Apink