Question: The eighth and final season of "Tyler Perry's House of Payne" began airing on October 21, 2011, it stars who, which American actress and singer, as Janine Payne?

Context paragraphs:
Demetria McKinney: Demetria Dyan McKinney (born August 27, 1979) is an American actress and singer.  She is known for her work as Janine Shelton–Payne on the TBS comedy sitcom "Tyler Perry's House of Payne" (2006–2012).  She was nominated for a 2009 National Association for Multi-ethnicity in Communications (NAMIC) Vision Award for Best Performance in a Comedy, in recognition of her work on "House of Payne".  McKinney has been a guest star on "The Real Housewives of Atlanta" airing on the Bravo Television Network since its 7th season premiere on November 9, 2014.

Tyler Perry's House of Payne (season 5): The fifth season of the "Tyler Perry's House of Payne" began airing on December 3, 2008, and concluded on June 3, 2009.  It stars Keshia Knight Pulliam as Miranda, Cassi Davis as Ella Payne, LaVan Davis as Curtis Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne, and Larramie "Doc" Shaw as Malik Payne.  This season consists of 26 episodes.  All episodes of this season of House of Payne were recorded in front of a live studio audience.

Tyler Perry's House of Payne (season 4): The fourth season of the "Tyler Perry's House of Payne" began airing on June 4, 2008, and concluded on August 6, 2008.  It stars Keshia Knight Pulliam as Miranda, Cassi Davis as Ella Payne, LaVan Davis as Curtis Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne, Larramie "Doc" Shaw as Malik Payne, China Anne McClain as Jazmine Payne, and Denise Burse as Claretha Jenkins.  The season contained 25 episodes.

China Anne McClain: China Anne McClain (born August 25, 1998) is an American actress and singer.  She is a member of the sister girl group McClain.  McClain's career began in 2005 when she was seven years old, acting in the movie "The Gospel" (2005).  She also played China James in Tyler Perry's Daddy's Little Girls (2007), along with Idris Elba and her two sisters.  However, she became nationally known after 2007, when she joined the cast of the series "Tyler Perry's House of Payne" as Jazmine Payne.  In 2010, she co-starred in "Grown Ups" (2010) as Charlotte McKenzie.  McClain became internationally known after starring in the Disney Channel original television series "A.N.T. Farm", landing the role as Chyna Parks, from 2011 to 2014.  Disney released the soundtrack of the television series "A.N.T. Farm" on October 11, 2011.

List of Tyler Perry's House of Payne episodes: "Tyler Perry's House of Payne" is an American comedy-drama television series created and produced by playwright, director, and producer Tyler Perry.  The show revolved around a multi-generational family living under one roof in Atlanta led by patriarch Curtis Payne and his wife Ella.  The show premiered in syndication on June 21, 2006, and new episodes were broadcast exclusively on TBS from June 6, 2007, until August 10, 2012.  While primarily a comedy sitcom, "House of Payne" was known for featuring dark themes and subject matter, such as substance abuse and addiction.  It also had elements of slapstick.  The storyline of the show is serialized, with many references to past episodes, creating a continuing story arc.

Tyler Perry's House of Payne: Tyler Perry's House of Payne is an American sitcom television series created and produced by playwright, director, and producer Tyler Perry.  The show revolved around a multi-generational family living under one roof in Atlanta led by patriarch Curtis Payne and his wife Ella.  The show premiered in syndication on June 21, 2006, and new episodes of a retooled version were broadcast exclusively on TBS from June 6, 2007, until August 10, 2012.  While primarily a comedy sitcom, "House of Payne" was known for featuring dark themes and subject matter, such as substance abuse and addiction.  It also had elements of slapstick.  The storyline of the show is serialized, with many references to past episodes, creating a continuing story arc.

Tyler Perry's House of Payne (season 8): The eighth and final season of "Tyler Perry's House of Payne" began airing on October 21, 2011 and ended, with the series finale, on August 10, 2012.  It stars LaVan Davis as Curtis Payne, Cassi Davis as Ella Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne, Keshia Knight Pulliam as Miranda Payne and who joins the cast as Floyd Jackson, and consists of 62 episodes.  It also stars Larramie "Doc" Shaw as Malik and China Anne McClain as Jazmine who are both in limited amount of episodes due to the shows that they also starred in ("Pair of Kings" and "A.N.T. Farm").

Tyler Perry's House of Payne (season 7): The seventh season of "Tyler Perry's House of Payne" began airing on March 30, 2011, and ended on June 15, 2011.  It stars LaVan Davis as Curtis Payne, Cassi Davis as Ella Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne and Keshia Knight Pulliam as Miranda Payne.

Tyler Perry's House of Payne (season 3): The third season of the "Tyler Perry's House of Payne" began airing on March 5, 2008, and concluded on April 16, 2008.  It stars Keshia Knight Pulliam who joins the cast as Miranda, Cassi Davis as Ella Payne, LaVan Davis as Curtis Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne, Larramie "Doc" Shaw as Malik Payne, China Anne McClain as Jazmine Payne, and Denise Burse as Claretha Jenkins.  The season contained 16 episodes.

Tyler Perry's House of Payne (season 6): The sixth season of the "Tyler Perry's House of Payne" began airing on November 4, 2009, and concluded on January 19, 2011.  It stars LaVan Davis as Curtis Payne, Cassi Davis as Ella Payne, Allen Payne as CJ Payne, Lance Gross as Calvin Payne, Demetria McKinney as Janine Payne and Keshia Knight Pulliam as Miranda Payne.  Larramie "Doc" Shaw, who play as Malik Payne, appears infrequently this season due to scheduling conflicts with two other shows he starred in, "The Suite Life on Deck" and "Pair of Kings".  This season also features the return of China Anne McClain as Jazmine Payne and Denise Burse as Claretha Jenkins, and consists of 46 episodes.  This season uses film lookout throughout the all episodes.

Supporting paragraphs: Tyler Perry's House of Payne (season 8) Demetria McKinney
Answer: Demetria McKinney