Demi is the French translation meaning half. For example, demi frere which means half brother or demi soeur which means half sister. Demi-glace is made by simmering and reducing by half a mixture of half brown stock and half espagnole sauce. Demi also has latin roots as feminine given name, originally a nickname form of Demetria, the feminine form of the masculine name Demetrius, which is itself the Latin and English spelling of Demetrios. Demi is uncommon as a surname. People with the name Demi include:

Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American singer-songwriter, musician, and actress. Her earliest roles included Angela on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in the Disney sitcom Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program. She is also involved in philanthropic activities through charity work and various social and environmental causes.

As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. The album debuted at number two on the Billboard 200 selling 89,000 copies in the first week. It has since shipped over 500,000 copies, earning a gold certification in the United States. Lovato released her second album, Here We Go Again, on July 21, 2009. The album debuted at number one on the Billboard 200, selling 108,000 copies in the first week. Her third studio album, Unbroken, was released on September 20, 2011 and peaked at number four on the Billboard 200. She is working on her fourth studio album.

Cher Lloyd (born 28 July 1993) is an English recording artist. Lloyd rose to fame when she finished fourth in the seventh series of The X Factor. Shortly afterwards, Lloyd was signed by Simon Cowell to Sony Music subsidiary Syco Music.

Cher Lloyd's debut single "Swagger Jagger" was released in June 2011. Despite receiving negative reviews, the single entered at number one on the UK Singles Chart and number two on the Irish Singles Chart. Her second single "With Ur Love" was released on 31 October, featuring Mike Posner, and peaked at number four in the UK, and number five in Ireland, preceding her debut album Sticks + Stones, which peaked at number four in the UK Albums Chart and number seven on the Irish Albums Chart.

Cher Lloyd used to live in Malvern with her parents Darren and Dina, and three younger siblings brother Josh, and sisters Sophie and Rosie. Lloyd attended Dyson Perrins CE Sports College, where she studied performing arts. She also attended theatre arts school Stagecoach.

Lloyd had previously auditioned for The X Factor twice before (when the minimum age was lower) singing ballads, but did not make it through. Lloyd has previously performed at holiday camps and said she gets a mixed reaction to her music, but was a big hit with x-factor judge at the time Cheryl Cole. She remarked on their similarity and Cheryl went on to support her throughout the show. She auditioned singing the Keri Hilson version of "Turn My Swag On". At bootcamp she sang a rap version of "Viva La Vida" adding lyrics she claimed to have written herself, but this was disputed and reports claimed she took them from a song by rapper Swizz Beatz. At the judges' houses she performed "Cooler Than Me" but suffered from tonsillitis and was unable to complete her song. She was given a second chance, but broke down sobbing and could not complete the song. Despite this, she was still picked as one of the final three girls by mentor Cheryl Cole.

Oliver "Olly" Stanley Murs (born 14 May 1984 in Witham, Essex, England) is an English singer-songwriter, musician and TV presenter. Murs rose to fame after being the runner-up on the sixth series of The X Factor. He is currently signed to Epic Records and Syco Music.

In late August 2010, Murs released his debut single "Please Don't Let Me Go", which debuted at number one on the UK Singles Charts, becoming Murs' second number one single after releasing "You Are Not Alone" with the other series 6 finalists. "Please Don't Let Me Go" received a Silver certification by the BPI. He released his second single from his debut album "Thinking of Me" which charted at number four on the UK Singles Charts, however the single also got a Silver certification by the BPI. "Heart Skips a Beat" was released and became his third number-one hit. Murs' second single from his follow up album In Case You Didn't Know, "Dance with Me Tonight", became his fourth to reach number one.

In November 2010, Murs released his self-titled debut album, which entered the UK Albums Chart at number two, with the biggest week one album sales for a debut album in 2010, with over 108,000 albums sold. The album went on to sell over 600,000 copies, and was certificated double platinum by the BPI. In November 2011, Murs released his second album, In Case You Didn't Know. The album entered the charts at number one, and has spawned two number one singles. In May 2011, it was announced that Murs would return to The X Factor to co-present spin-off show The Xtra Factor with Caroline Flack. It was also confirmed that Murs would present a Celebrity Club Classic show on Heart FM. He also has an active Twitter account with over 2 million followers as of May 2012.

Amethyst Amelia Kelly (born June 7, 1990), better known by her stage name Iggy Azalea is an Australian hip hop recording artist signed to Grand Hustle Records. She is perhaps better known for her promotional songs "Two Times", "Pu$$y" and "My World" whose music videos went viral on YouTube. On 27 September 2011, Azalea released her first project, a mixtape titled Ignorant Art, saying she made it "with the intent to make people question and redefine old ideals".

Iggy Azalea was born Amethyst Amelia Kelly in Sydney, Australia but moved with her family to Mullumbimby when she was still a baby, into a house on 12 acres that her father built by hand from mudbricks in New South Wales. Her father was a comic artist and painter and her mother a real estate agent. Azalea says her father "made her look at [art] as a teenager" which has always influenced her life and work.

Azalea began rapping at age 14. Azalea took her stage name from her family's dog while growing up. Before embarking on a solo career, Azalea formed a group with two other girls from her neighborhood: "I was like, I could be the rapper. This could be like TLC. I’ll be Left Eye." Azalea eventually decided to leave the group because the other girls weren’t taking it seriously: "I take everything I do serious. I’m too competitive."