Question: Starrah co wrote what song for Katheryn Elizabeth Hudson ?

Context paragraphs:
Starrah: Brittany Talia Hazzard (born June 14, 1990), professionally known as Starrah, is an American songwriter, singer and rapper.  She co-wrote songs such as Rihanna's "Needed Me," Kevin Gates' "2 Phones," Dreezy's "Body," Kid Ink's "Be Real," Katy Perry's "Swish Swish", Nicki Minaj, Drake and Lil Wayne's No Frauds and Jeremih's "Pass Dat", as well studio albums like Travis Scott's "Birds in the Trap Sing McKnight" and 5 songs on Calvin Harris Funk Wav bounces Vol 1 including "Feels" featuring Pharrell Williams, Katy Perry and Big Sean.  The demos of a few songs she co-wrote, featuring Starrah singing instead of the intended artist, have leaked, including her versions of "Pick Up the Phone", "Infinite Stripes" and "Trust Nobody".

Ben Best (screenwriter): Ben Best is an American screenwriter and actor.  He is the co-creator and co-writer of the television show "Eastbound & Down".  He also co wrote the films "The Foot Fist Way" and "Your Highness".

Rochelle Hudson: Rochelle Elizabeth Hudson (March 6, 1916 – January 17, 1972) was an American film actress from the 1930s through the 1960s.  Hudson was a WAMPAS Baby Star in 1931.

White Matlack: White Matlack (October 7, 1745; Haddonfield, New Jersey – January 7, 1824) to Elizabeth Martha Burr Haines and Timothy Matlack: a couple that had both lost their first spouses.  His grandparents were William Matlack and Mary Hancock; and Henry Burr and Elizabeth Hudson.  His siblings were Sybil, Elizabeth, Titus, Seth, Josiah and Timothy Matlack.  He was a New York Quaker and abolitionist.

Faces of Death III: Faces of Death III is the second sequel to the 1978 mondo film "Faces of Death".  Once again, John Alan Schwartz directed (again as "Conan le Cilaire") and co wrote (as "Alan Black") along with co writer Veronica Lakewood.  Michael Carr again portrays Dr. Francis B. Gröss.

Stephen Betts: Steve Betts, also known as L. Howard Hughes, is a composer, songwriter and session musician.  He formed New Wave band The Books who released three singles and an album "Expertise" on Logo Records in 1980.  Subsequently he was the keyboardist for the band the Associates.  He also co wrote and co produced Peter Murphy's first solo album "Should the World Fail to Fall Apart", and in the mid 80s he formed Howard Hughes and The Western Approaches, releasing four singles on the Abstract and EG record labels.

Giles Kristian: Giles Kristian (born 1975) is a bestselling novelist, known for his action adventure novels in the historical fiction genre.  He is best known for his "Raven" series, about a young man’s coming of age amongst a band of Viking warriors.  His first novel, the bestselling "Raven: Blood Eye," was published to great acclaim (including an accolade from Bernard Cornwell).  Two further novels complete the "Raven" Saga, "Sons of Thunder" and "Odin's Wolves", and to date the books have been published in eight languages.  He has written two books set during the English Civil War 'The Bleeding Land' and 'Brothers Fury' published by Transworld Publishers.  In 2015 he co wrote 'Golden Lion' with Wilbur Smith, part of Smith's best selling Courtney series.  He is currently writing the second book in the Raven prequel series, following the exploits of Sigurd 'The Lucky', the first being the 2014 release "God of Vengeance".

Delirious (David Guetta song): "Delirious" is a house song performed by French DJ David Guetta and Tara McDonald (McDonald also co wrote the song) for Guetta's third studio album, "Pop Life".  The song was released as the album's fourth single on January 31, 2008.  Several remixes of the song, including mixes by Fred Rister, Marc Mysterio, Laidback Luke, and Arno Cost and Norman Doray were released.  A video clip for the song was filmed by Denys Thibaut in Montreal, featuring David Guetta and Tara McDonald, picturing an executive assistant (Kelly Thiebaud) throwing paint all over her boss's office.

Katy Perry: Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer and songwriter.  After singing in church during her childhood, she pursued a career in gospel music as a teenager.  Perry signed with Red Hill Records and released her debut studio album "Katy Hudson" under her birth name in 2001, which was commercially unsuccessful.  She moved to Los Angeles the following year to venture into secular music after Red Hill ceased operations and she subsequently began working with producers Glen Ballard, Dr. Luke, and Max Martin.  After adopting the stage name Katy Perry and being dropped by The Island Def Jam Music Group and Columbia Records, she signed a recording contract with Capitol Records in April 2007.

Little Miss Broadway (1947 film): Little Miss Broadway is a 1947 American musical film starring Jean Porter and directed by Arthur Dreifuss.  Dreifuss also co wrote the screenplay.

Supporting paragraphs: Starrah Katy Perry
Answer: Swish Swish