Question: Who won American Idol when the contestant who won an Oscar for Dreamgirls competed?

full_context: Document 1: American Idol (season 3): The third season of American Idol premiered on Monday, January 19, 2004 and continued until May 26, 2004. The third season was won by Fantasia Barrino, who defeated Diana DeGarmo by an approximate margin of 2% (1.3 million votes); the vote total (65 million votes) was the highest recorded vote total in the show's history until the May 23, 2007, finale of the sixth season. This season also featured Jennifer Hudson, who would subsequently win the 2006 Academy Award for Best Supporting Actress. This is the last season to be aired in standard definition, with the only exception being the grand finale.
Document 2: American Idol (season 6): The sixth season of American Idol premiered on the Fox Broadcasting Company as a two - night, four - hour premiere special on January 16 and January 17, and ran until May 23, 2007. Simon Cowell, Paula Abdul, and Randy Jackson returned to judge once again, and Ryan Seacrest returned as host. A new record of 74 million votes were cast in the finale round, and a new record of 609 million votes were cast in the entire season (the seasonal total record was surpassed by the tenth season and the finale vote record was broken by the eleventh season). Jordin Sparks won the competition with Blake Lewis as the first runner - up and Melinda Doolittle finishing third. Jordin Sparks is also the youngest winner of the competition, winning at age 17, as well as the first winner from outside the Southern United States. Sparks remained the last female winner until the twelfth season.
Document 3: American Idol: The impact of American Idol is also strongly felt in musical theatre, where many of Idol alumni have forged successful careers. The striking effect of former American Idol contestants on Broadway has been noted and commented on. The casting of a popular Idol contestant can lead to significantly increased ticket sales. Other alumni have gone on to work in television and films, the most notable being Jennifer Hudson who, on the recommendation of the Idol vocal coach Debra Byrd, won a role in Dreamgirls and subsequently received an Academy Award for her performance.
Document 4: American Idol: Some in the entertainment industry were critical of the star-making aspect of the show. Usher, a mentor on the show, bemoaning the loss of the "true art form of music", thought that shows like American Idol made it seem "so easy that everyone can do it, and that it can happen overnight", and that "television is a lie". Musician Michael Feinstein, while acknowledging that the show had uncovered promising performers, said that American Idol "isn't really about music. It's about all the bad aspects of the music business – the arrogance of commerce, this sense of 'I know what will make this person a star; artists themselves don't know.' " That American Idol is seen to be a fast track to success for its contestants has been a cause of resentment for some in the industry. LeAnn Rimes, commenting on Carrie Underwood winning Best Female Artist in Country Music Awards over Faith Hill in 2006, said that "Carrie has not paid her dues long enough to fully deserve that award". It is a common theme that has been echoed by many others. Elton John, who had appeared as a mentor in the show but turned down an offer to be a judge on American Idol, commenting on talent shows in general, said that "there have been some good acts but the only way to sustain a career is to pay your dues in small clubs".
Document 5: American Idol: Much media attention on the season had been focused on the three black singers, Fantasia Barrino, LaToya London, and Jennifer Hudson, dubbed the Three Divas. All three unexpectedly landed on the bottom three on the top seven result show, with Hudson controversially eliminated. Elton John, who was one of the mentors that season, called the results of the votes "incredibly racist". The prolonged stays of John Stevens and Jasmine Trias in the finals, despite negative comments from the judges, had aroused resentment, so much so that John Stevens reportedly received a death threat, which he dismissed as a joke 'blown out of proportion'.
Document 6: American Idol (season 3): The third season of American Idol premiered on Monday, January 19, 2004 and continued until May 26, 2004. The third season was won by Fantasia Barrino, who defeated Diana DeGarmo by an approximate margin of 2% (1.3 million votes); the vote total (65 million votes) was the highest recorded vote total in the show's history until the May 23, 2007, finale of the sixth season. This season also featured Jennifer Hudson, who would subsequently win the 2006 Academy Award for Best Supporting Actress.
Document 7: American Idol: The final showdown was between Justin Guarini, one of the early favorites, and Kelly Clarkson. Clarkson was not initially thought of as a contender, but impressed the judges with some good performances in the final rounds, such as her performance of Aretha Franklin's "Natural Woman", and Betty Hutton's "Stuff Like That There", and eventually won the crown on September 4, 2002.
Document 8: American Idol: In the May 23 season finale, Jordin Sparks was declared the winner with the runner-up being Blake Lewis. Sparks has had some success as a recording artist post-Idol.
Document 9: American Idol: Ruben Studdard emerged as the winner, beating Clay Aiken by a small margin. Out of a total of 24 million votes, Studdard finished just 134,000 votes ahead of Aiken. This slim margin of victory was controversial due to the large number of calls that failed to get through. In an interview prior to season five, executive producer Nigel Lythgoe indicated that Aiken had led the fan voting from the wildcard week onward until the finale.
Document 10: American Idol: With the exception of seasons one and two, the contestants in the semifinals onwards perform in front of a studio audience. They perform with a full band in the finals. From season four to season nine, the American Idol band was led by Rickey Minor; from season ten onwards, Ray Chew. Assistance may also be given by vocal coaches and song arrangers, such as Michael Orland and Debra Byrd to contestants behind the scene. Starting with season seven, contestants may perform with a musical instrument from the Hollywood rounds onwards. In the first nine seasons, performances were usually aired live on Tuesday nights, followed by the results shows on Wednesdays in the United States and Canada, but moved to Wednesdays and Thursdays in season ten.
Document 11: And I Am Telling You I'm Not Going: In addition to its presence in the musical, ``And I Am Telling You I'm Not Going ''is also notable as the debut single of two women who portrayed Effie. Jennifer Holliday originated the role on Broadway in 1981 and won a Tony Award for her performance as well as the Grammy for Best R&B Performance, Female for its re-release in 1982 for which it became a number - one R&B hit for Holliday. Jennifer Hudson portrayed Effie in the 2006 film adaptation of Dreamgirls, winning an Oscar for the role. Hudson's version became a Top 20 R&B single, and a number - one dance hit.
Document 12: American Idol: David Archuleta's performance of John Lennon's "Imagine" was considered by many as one of the best of the season. Jennifer Lopez, who was brought in as a judge in season ten, called it a beautiful song-moment that she will never forget. Jason Castro's semi-final performance of "Hallelujah" also received considerable attention, and it propelled Jeff Buckley's version of the song to the top of the Billboard digital song chart. This was the first season in which contestants' recordings were released onto iTunes after their performances, and although sales information was not released so as not to prejudice the contest, leaked information indicated that contestants' songs frequently reached the top of iTunes sales charts.
Document 13: American Idol (season 5): The fifth season of reality television singing competition American Idol began on January 17, 2006, and concluded on May 24, 2006. Randy Jackson, Paula Abdul and Simon Cowell returned to judge, and Ryan Seacrest returned to host. It is the most successful season to date ratings-wise, and resulted in 18 contestants (including all of the top 10 and a few semifinalists) getting record deals -- nine of them with major labels. It was the first season with a male winner (Taylor Hicks) and a female runner - up (Katharine McPhee). It was also the first season of the series to be aired in high definition.
Document 14: American Idol: As one of the most successful shows on U.S. television history, American Idol has a strong impact not just on television, but also in the wider world of entertainment. It helped create a number of highly successful recording artists, such as Kelly Clarkson, Daughtry and Carrie Underwood, as well as others of varying notability.
Document 15: American Idol: Season four premiered on January 18, 2005; this was the first season of the series to be aired in high definition, although the finale of season three was also aired in high definition. The number of those attending the auditions by now had increased to over 100,000 from the 10,000 of the first season. The age limit was raised to 28 in this season, and among those who benefited from this new rule were Constantine Maroulis and Bo Bice, the two rockers of the show.
ground_truth: Fantasia Barrino
sub_queries: Which American Idol contestant won an Oscar for Dreamgirls? Answer: Jennifer Hudson
who won american idol when Jennifer Hudson competed Answer: Fantasia Barrino