IN: Ai Carina Uemura (Zhi Cun Ai karina, Uemura Ai Karina, born November 2, 1981), known mononymously as Ai (Japanese pronunciation: [ai], stylized as AI or A.I. ) is a Japanese-American singer and songwriter who was born in Los Angeles. Ai spent her childhood in both Kagoshima, Japan and Los Angeles. She debuted as a singer in 2000, later moving to Def Jam Japan and rising to fame with her album 2004 Ai.

As is standard for Japanese musicians, Ai has featured as a spokesperson, or has her music featured, for many products. Ai's songs have been used as TV commercial songs, drama theme songs, film theme songs and TV show ending theme songs. Ai has worked on four major Coca-Cola TV commercial campaigns, two featuring her own songs ("You Are My Star" (2009), "Happiness" (2011)) and two featuring collaborations (K'naan's "Wavin' Flag" (2009), Namie Amuro's "Wonder Woman" (2011)). She has also been featured in two Audio-Technica campaigns (using "My Friend (Live Version)" and "I'll Remember You", a campaign for Japan Airlines ("Brand New Day") and Pepsi Nex with "I Wanna Know." Ai's most high-profile work for a TV drama was the theme song for 2006's primetime drama Team Medical Dragon, "Believe", which was one of her greatest hits, selling over one million ringtones. Ai also sung the theme song for the drama's second series, "One." Ai also worked on the theme song for the 2010 primetime drama Keishicho Keizoku Sosahan, "Nemurenai Machi." Other program theme songs include the Japanese theme song for the American drama Heroes ("Taisetsu na Mono"), and the 15th ending theme for the children's animation Crayon Shin-chan, "Crayon Beats"). In 2005, Ai's song "Alive (English Version)" was used as an insert song for the South Korean drama Delightful Girl Choon-Hyang. Many of Ai's songs have been used in films. Her "Story" song was remade (also with its English version) for Disney's box office Big Hero 6 in 2014. She performed the theme song for Departures (2008), the winner of the Academy Award for Best Foreign Language Film in 2009. She has also sung the theme songs for Crayon Shin-chan: The Legend Called Buri Buri 3 Minutes Charge (2005), Pray (2005), Lalapipo (2009) and Berserk Golden Age Arc I: The Egg of the High King (2012). Her music has been featured on the soundtracks of TKO Hiphop (2005), the musical film Memories of Matsuko (2006), in which Ai cameoed to perform the song, and Heat Island (2007).
QUESTION: did she ever sing with anyone else
IN: Christensen was born in Vancouver, British Columbia, to Alie, an American speechwriter, and David Christensen, a Canadian computer programmer and communications executive. His father is of Danish descent, and his mother has Swedish and Italian ancestry. Christensen is one of four children, with three actor siblings: older brother Tove, older sister Hejsa, and younger sister Kaylen. Christensen was an athlete in high school, playing hockey competitively and tennis on a provincial level.

Christensen made his acting debut in September 1993, when, at the age of 12, he played a supporting role on the German-Canadian television series Macht Der Leidenschaft/Family Passions. The following year, he had a minor role in John Carpenter's In the Mouth of Madness. From 1995 through 1999, he appeared in several films and television series, including Harrison Bergeron, Forever Knight, Goosebumps, The Virgin Suicides, and Are You Afraid of the Dark? He acquired wider notice while starring in Fox Family Channel's television series Higher Ground in 2000, portraying a teen who was sexually molested by his stepmother, and then turned to drugs in his despair. Christensen's critically acclaimed portrayal of a misunderstood teenager in Life as a House (2001) earned him Golden Globe and SAG Award nominations, as well as the National Board of Review's award for Breakthrough Performance of the Year. However, the performance did not receive widespread public notice. In 2002, Christensen made his London theatre debut with Jake Gyllenhaal and Anna Paquin in This Is Our Youth. He went on to receive good reviews for 2003's Shattered Glass, which tells the true story of journalist Stephen Glass, who was discovered to be fabricating stories as a writer for The New Republic and other publications. Peter Travers of Rolling Stone wrote, "Hayden Christensen is sensational as Glass, finding the wonder boy and the weasel in a disturbed kid flying high on a fame he hasn't earned." In 2005, Christensen made his Broadway debut when he appeared briefly in a 10-minute play. In 2005, he took part in the fifth annual "24 Hour Plays" benefit, which raises cash for nonprofit groups in the Big Apple.
QUESTION:
what was the film?