Jennifer Lopez (born July 24, 1969), also known by her nickname J.Lo, is an American actress, singer, record producer, dancer, television personality, fashion designer and television producer. Lopez began her career as a dancer on the television comedy program In Living Color. Subsequently venturing into acting, she gained recognition in the 1995 action-thriller Money Train. Her first leading role was in the biographical film Selena (1997), in which she earned an ALMA Award for Outstanding Actress. She earned her second ALMA Award for her performance in Out of Sight (1998). She has since starred in various films, including The Wedding Planner (2001), Maid in Manhattan (2002), Shall We Dance? (2004), Monster-in-Law (2005), and The Back-up Plan (2010). Lopez came to prominence within the music industry following the release of her debut studio album On the 6 (1999), which spawned the number one hit single "If You Had My Love". Her second studio album J.Lo (2001) was a commercial success, selling eight million copies worldwide. J to tha L-O!: The Remixes (2002) became her second consecutive album to debut at number one on the Billboard 200, while her third and fourth studio albums – This Is Me... Then (2002) and Rebirth (2005) – peaked at number two on the Billboard 200. In 2007, she released two albums including her first full Spanish-language album Como Ama una Mujer and her fifth English studio album, Brave. With a new record label, Lopez released Love? on April 19, 2011. In 2012, she released her greatest hits album, Dance Again... the Hits. A.K.A. followed in 2014. Lopez's contributions to the music industry have garnered her numerous achievements including two Grammy Award nominations; two Latin Grammy Award nominations; three American Music Awards, amongst six nominations; and the estimated sale of over 55 million records worldwide. Billboard ranked her as the 27th Artist of the 2000s decade. Lending her musical knowledge to others, Lopez was a member of the judging panel of American reality television competition American Idol. She led People en Español's list of "100 Most Influential Hispanics" in February 2007. She has parlayed her media fame into a fashion line and various perfumes with her celebrity endorsement. Outside of her work in the entertainment industry, Lopez advocates human rights, vaccinations and is a supporter of Children's Hospital Los Angeles. She currently executive produces the TV show Shades of Blue in which she stars as Harlee Santos, a dirty cop who provides for her daughter with money from bribes and protection payments.

Jennifer Lopez plays as Herself - Judge in World of Dance.
Jennifer Lopez is the top #1 member of the cast and appears in 50 episodes.

From Wikipedia, the free encyclopedia. Shaffer Chimere Smith, Jr. (born October 18, 1979), better known by his stage name Ne-Yo, is an American pop and R&B singer-songwriter, record producer, and actor. Since his debut, Ne-Yo has had five top ten songs on the Billboard Hot 100 as a lead artist and two number-one albums on the Billboard 200. Ne-Yo has also amassed a catalog of chart-topping songs that he has written for other artists. Ne-Yo broke into the recording industry as a songwriter, penning the hit "Let Me Love You" for singer Mario. The single's successful release in the United States prompted an informal meeting between Ne-Yo and Def Jam's label head, and signing a recording contract. In 2006, he released his debut album, In My Own Words, which contained the US number one hit "So Sick". Then in 2007, he released his second album, Because of You which contained the US top 3 hit, "Because of You". In 2008, he released his third album, Year of the Gentleman, which contained the top 10 hits "Closer" and "Miss Independent". His fourth studio album Libra Scale was released on November 22, 2010. Description above from the Wikipedia article Ne-Yo , licensed under CC-BY-SA, full list of contributors on Wikipedia.​

Ne-Yo plays as Himself - Judge in World of Dance.
Ne-Yo is the top #2 member of the cast and appears in 50 episodes.

From Wikipedia, the free encyclopedia Jenna Lee Dewan-Tatum (née Dewan; born December 3, 1980) is an American actress and dancer. She began her career as a background dancer for artists including Missy Elliott, Janet Jackson, and Christina Aguilera. She is best known for her role as Nora in the film Step Up. She has also appeared in the short-lived NBC series The Playboy Club and had a recurring role on the FX series American Horror Story: Asylum. Dewan-Tatum has been married to actor Channing Tatum since 2009 and currently stars on the Lifetime series Witches of East End. Dewan-Tatum was born in Hartford, Connecticut, the daughter of Nancy Bursch Smith (née Bursch) and Darryll Dewan, who was a running back on the 1972 Notre Dame football team. Her father is of Lebanese and Polish descent and her mother is of German and English ancestry. Her parents divorced when she was young and her mother remarried Claude Brooks Smith. During high school at Grapevine High School in Grapevine, Texas, Dewan-Tatum was a varsity cheerleader. She graduated in 1999 and was voted prom queen her senior year. She went to University of Southern California and was a member of the California Gamma Chapter of Pi Beta Phi. Description above from the Wikipedia article Jenna Dewan, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Jenna Dewan plays as Herself in World of Dance.
Jenna Dewan is the top #3 member of the cast and appears in 50 episodes.

Derek Hough plays as Himself - Judge in World of Dance.
Derek Hough is the top #4 member of the cast and appears in 50 episodes.