Howard Sings Ashman is a two-disc album compiled by PS Classics as part of their "Songwriter Series".
 The album features Howard Ashman singing selections from his musicals, including "God Bless You, Mr. Rosewater" (1979), "Little Shop of Horrors" (1982), "Smile" (1986), "The Little Mermaid" (1989), "Beauty and the Beast" (1991) and "Aladdin" (1992).
Howard Elliott Ashman (May 17, 1950 – March 14, 1991) was an American playwright and lyricist.
 He collaborated with Alan Menken on several works and is most widely known for several animated feature films for Disney, for which Ashman wrote the lyrics and Menken composed the music.
 Ashman and Menken began their collaboration with the musical "God Bless You, Mr. Rosewater" (1979), for which Ashman directed and wrote both book and lyrics.
 Their next musical, "Little Shop of Horrors" (1982) for which Ashman again directed and wrote both book and lyrics, became a long-running success and led to a 1986 feature film.
 The partnership's first Disney film was "The Little Mermaid" (1989), followed by "Beauty and the Beast" (1991).
 After his death, some of Ashman's songs were included in another Disney film, "Aladdin" (1992).
Little Shop of Horrors is a 1986 American rock musical horror comedy film directed by Frank Oz.
 It is a film adaptation of the off-Broadway musical comedy of the same name by composer Alan Menken and writer Howard Ashman about a nerdy florist shop worker who finds out his venus fly trap can speak.
 Menken and Ashman's Off-Broadway musical was based on the low-budget 1960 film "The Little Shop of Horrors", directed by Roger Corman.
 The 1986 film stars Rick Moranis, Ellen Greene, Vincent Gardenia, Steve Martin, and Levi Stubbs as the voice of Audrey II.
 The film also featured special appearances by James Belushi, John Candy, Christopher Guest, and Bill Murray.
 It was produced by David Geffen through The Geffen Company and released by Warner Bros. on December 19, 1986.
Mark W. Ryan is an award-winning music editor for film and television, currently living in Los Angeles, California.
 A two-time winner of the Motion Picture Sound Editors "Golden Reel Award", he has worked on films such as "Liar, Liar" as well as many primetime television and animation shows.
 Also a singer and songwriter and an accomplished guitarist, Ryan began his entertainment career as a drummer in his hometown of Cleveland, Ohio.
 He earned a B.A. in music theory and percussion from Kent State University in 1983, and married before relocating to Los Angeles in 1986.
 He is also credited as a voice-over actor in the 1991 animated series "Little Shop", based on the film "Little Shop Of Horrors", in which he voiced the character Paine Driller.
Jennifer Leigh Warren is an American stage, television, film, and voice-over actress/singer who first came to the world's attention for her work in professional musical theater.
 She is best known for originating the role of Crystal in the Howard Ashman /Alan Menken hit musical "Little Shop of Horrors", for her performance in the original Broadway cast of the Michael John LaChiusa musical "Marie Christine" and for her show stopping performance of “Alice’s Daughter” in the original Broadway musical "Big River" with the song "How Blest We Are" written especially for her by Roger Miller.
Little Shop is a 1991 American animated fantasy comedy television series that aired on Saturday mornings on the Fox Kids TV network in 1991, about a teenager and a giant talking plant.
 "Little Shop" was based on the off-broadway musical "Little Shop of Horrors", which was based on the 1960 Roger Corman film "The Little Shop of Horrors".
 The concept of the adaptation is credited to Ellen Levy and Mark Edward Edens, and the series was produced by Tom Tataranowicz.
 The horror elements in previous versions of the story, in which characters are eaten by the plant, are toned down for children in this series.
Alan Irwin Menken (born July 22, 1949) is an American musical theatre and film score composer and pianist.
 Menken is best known for his scores for films produced by Walt Disney Animation Studios.
 His scores for "The Little Mermaid" (1989), "Beauty and the Beast" (1991), "Aladdin" (1992), and "Pocahontas" (1995) have each won him two Academy Awards.
 He also composed the scores for "Little Shop of Horrors" (1986), "Newsies" (1992), "The Hunchback of Notre Dame" (1996), "Hercules" (1997), "Home on the Range" (2004), "Enchanted" (2007), "Tangled" (2010) and "Sausage Party" (2016), among others.
 He is also known for his work on musical theatre works for Broadway and elsewhere.
 Some of these are based on his Disney films, but other stage hits include "Little Shop of Horrors" (1982), "A Christmas Carol" (1994) and "Sister Act" (2009).
Bedbugs!!!
 is an American musical comedy about a mad-scientist exterminator named Carly who accidentally mutants New York City's bed bug population with her super-insecticide, which she created out of revenge for her Mother's bedbug-related death.
 The rock musical, written by Paul Leschen (Music) and Fred Sauter (Book and Lyrics) pays homage 80s rock music, 80s films such as Gremlins and Ghostbusters, and features a side-plot about a Canadian pop singer called Dionne Salon (based on Celine Dion.)
 It opened Off Broadway at the Arclight Theatre on September 14, 2014 and closed on November 2, 2014.
 It has been compared to "The Rocky Horror Show" and "Little Shop of Horrors".
Little Shop of Horrors is a horror comedy rock musical, by composer Alan Menken and writer Howard Ashman, about a hapless florist shop worker who raises a plant that feeds on human blood and flesh.
 The musical is based on the low-budget 1960 black comedy film "The Little Shop of Horrors".
 The music, composed by Menken in the style of early 1960s rock and roll, doo-wop and early Motown, includes several well-known tunes, including the title song, "Skid Row (Downtown)", "Somewhere That's Green", and "Suddenly, Seymour".
Kurt Vonnegut's God Bless You, Mr. Rosewater is a 1979 musical that marked the first collaboration of composer Alan Menken and writer Howard Ashman.
 Based on Kurt Vonnegut's 1965 novel of the same name, the musical tells the story of Eliot Rosewater, a millionaire who develops a social conscience and creates a foundation to improve the lives of the citizens of an impoverished Indiana town.

Question: Little Shop of Horrors is a horror comedy rock musical, by writer Howard Ashman and which composer?
Answer: Alan Menken