Question: By what nickname was the star of the film Alien 51 referred to? 

Context paragraphs:
Dawdon: Dawdon is a former pit community to the south of Seaham, County Durham, in England.  An area of the beach near Dawdon (known locally as "the Blast", a former waste coal dumping site) was used in the opening scenes of the film Alien 3.

List of Star Wars species (U–Z): This is a list of "Star Wars" species, containing the names of fictional sentient species from the "Star Wars" franchise beginning with the letters U through Z. "Star Wars" is an American epic space opera film series created by George Lucas.  The first film in the series, "Star Wars", was released on May 25, 1977 and became a worldwide pop culture phenomenon, followed by five sequels and three prequels.  Many species of alien creatures (often humanoid) are depicted.

Alien 51: Alien 51 is a 2004 low-budget science fiction film starring Heidi Fleiss.

Sing girls: "Sing girls" () is a nickname for actresses who starred alongside Stephen Chow, often as the main character's romantic interest.  Many are young, new actresses who go on to receive considerable media attention after appearing in one of Chow's films, and their success is often attributed to the attention brought to them by Chow—Zhang Yuqi, for example, has been referred to as Chow's "protégée" after appearing in the 2007 film "CJ7".  The Chinese word 星 "xīng" refers both to Chow's nickname 星爷 ("Sing Yeh", "Grandmaster Sing") and to 明星, the word for a star or celebrity.

Semiotic Standard: The Semiotic Standard For All Commercial Trans-Stellar Utility Lifter And Heavy Element Transport Spacecraft.  (shortened to just "Semiotic Standard") was used in the film Alien in the ship "Nostromo."  It is a set of 34 symbols used to represent various concepts in the ship such as "coffee" or "radiation hazard".  The original set included 31 symbols and was designed by Ron Cobb.

The Mote in God's Eye: The Mote in God's Eye is a science fiction novel by American writers Larry Niven and Jerry Pournelle, first published in 1974.  The story is set in the distant future of Pournelle's CoDominium universe, and charts the first contact between humanity and an alien species.  The title of the novel is a wordplay on the Biblical "The Mote and the Beam" parable and is the nickname of a star.  "The Mote in God's Eye" was nominated for the Hugo, Nebula and Locus Awards in 1975.

Heidi Fleiss: Heidi Lynne Fleiss (born December 30, 1965) is an American former madam, and also a columnist and television personality regularly featured in the 1990s in American media.  She ran a prostitution ring based in Los Angeles, California, and is often referred to as the "Hollywood Madam".

Hang-Ups: Hang-Ups, Goldfinger's second album on Mojo Records, was released September 9, 1997.  Many of the album's tracks feature more of a ska sound than their debut.  The album's first single "This Lonely Place" was not as successful as "Here in Your Bedroom", a single off their debut album, but it did gain them numerous talk show appearances and spins of the video, which parodies the 1979 film Alien.

Alien (creature in Alien franchise): The "Alien" (also referred to as "Xenomorph XX121") is a fictional endoparasitoid extraterrestrial species that is the eponymous antagonist of the "Alien" film series.  The species made its debut in the film "Alien" (1979), and reappeared in the sequels "Aliens" (1986), "Alien 3" (1992), and "" (1997), as well as the crossover franchise "Alien vs. Predator" (2004) and "" (2007).  A similar creature of a slightly different design named the "Deacon" makes a brief appearance in the Ridley Scott film "Prometheus" (2012).  Two species, one being a different but similar creature called a "Neomorph" and the other being a variation of the Xenomorph XX121 species appear in the sequel to "Prometheus", "" (2017), which reveals the potential origin of the species.  In addition, the Alien appears in various literature and video game spin-offs from the franchises.

Chigs: Chigs (sometimes referred to as Glyphs) are a fictional alien species in the science fiction television series "".  "Chig" is not the species' name for itself, but rather a human-coined nickname (referencing the chigoe flea).

Supporting paragraphs: Alien 51 Heidi Fleiss
Answer: "Hollywood Madam"