Question: Who fathered the singer whose song was sent to the top of a Billboard chart by Castro's performance?

full_context: Document 1: The Many Moods of Murry Wilson: The Many Moods of Murry Wilson is the sole album release by Murry Wilson, the father of Brian, Carl and Dennis Wilson and uncle of Mike Love of The Beach Boys. The album was released on Capitol Records in 1967, the same record label that The Beach Boys were contracted to at the time.
Document 2: American Idol: In what was to become a tradition, Clarkson performed the coronation song during the finale, and released the song immediately after the season ended. The single, "A Moment Like This", went on to break a 38-year-old record held by The Beatles for the biggest leap to number one on the Billboard Hot 100. Guarini did not release any song immediately after the show and remains the only runner-up not to do so. Both Clarkson and Guarini made a musical film, From Justin to Kelly, which was released in 2003 but was widely panned. Clarkson has since become the most successful Idol contestant internationally, with worldwide album sales of more than 23 million.
Document 3: 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 4: American Idol: Despite being eliminated earlier in the season, Chris Daughtry (as lead of the band Daughtry) became the most successful recording artist from this season. Other contestants, such as Hicks, McPhee, Bucky Covington, Mandisa, Kellie Pickler, and Elliott Yamin have had varying levels of success.
Document 5: American Idol: Chris Daughtry's performance of Fuel's "Hemorrhage (In My Hands)" on the show was widely praised and led to an invitation to join the band as Fuel's new lead singer, an invitation he declined. His performance of Live's version of "I Walk the Line" was well received by the judges but later criticized in some quarters for not crediting the arrangement to Live. He was eliminated at the top four in a shocking result.
Document 6: 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 7: The Death of Emmett Till: "The Death of Emmett Till", also known as "The Ballad of Emmett Till", is a song by American musician and Nobel Laureate Bob Dylan about the murder of Emmett Till. Till, a 14-year-old African American, was killed on August 28, 1955, by two white men, reportedly after flirting with a white woman. In the song's lyrics, Dylan recounts the murder and trial.
Document 8: Cryin' for Me (Wayman's Song): The song is a mid-tempo country ballad, mostly accompanied by acoustic guitar and saxophone. It was written as a tribute to basketball player and jazz musician Wayman Tisdale, who died on May 15, 2009. In it, the narrator is crying, but states he is not crying for Tisdale's death, rather crying for himself.
Document 9: The Needle and the Damage Done: "The Needle and the Damage Done" is a song by Neil Young that describes the destruction caused by the heroin addiction of musicians he knew including his friend and Crazy Horse bandmate Danny Whitten. It previews the theme of the "Tonight's the Night" album that reflects Young's grief over the heroin overdose and death of both Whitten and Bruce Berry, a roadie for Young and Crazy Horse.
Document 10: Say Hello 2 Heaven: Cornell wrote ``Say Hello 2 Heaven ''as a tribute to his roommate, Mother Love Bone vocalist Andrew Wood, who at the time had recently died of a heroin overdose.
Document 11: American Idol: American Idol has traditionally released studio recordings of contestants' performances as well as the winner's coronation single for sale. For the first five seasons, the recordings were released as a compilation album at the end of the season. All five of these albums reached the top ten in Billboard 200 which made then American Idol the most successful soundtrack franchise of any motion picture or television program. Starting late in season five, individual performances were released during the season as digital downloads, initially from the American Idol official website only. In season seven the live performances and studio recordings were made available during the season from iTunes when it joined as a sponsor. In Season ten the weekly studio recordings were also released as compilation digital album straight after performance night.
Document 12: Dream Brother: The Songs of Tim and Jeff Buckley: Dream Brother: The Songs of Tim and Jeff Buckley is a studio album performed by various artists in tribute to 1960s musician Tim Buckley, and his son, also a musician, Jeff Buckley. Both father and son died prematurely, Tim Buckley of an overdose and Jeff Buckley in a drowning accident.
Document 13: Ronnie Bucknum: He was the father of Jeff Bucknum, an Indy Racing League and American Le Mans Series driver. Ronnie Bucknum died in San Luis Obispo, California following complications from diabetes.
Document 14: American Idol: The American Idol Songwriter contest was also held this season. From ten of the most popular submissions, each of the final two contestants chose a song to perform, although neither of their selections was used as the "coronation song". The winning song, "The Time of My Life", was recorded by David Cook and released on May 22, 2008.
Document 15: American Idol: For the finals, American Idol debuted a new state-of-the-art set and stage on March 11, 2008, along with a new on-air look. David Cook's performance of "Billie Jean" on top-ten night was lauded by the judges, but provoked controversy when they apparently mistook the Chris Cornell arrangement to be David Cook's own even though the performance was introduced as Cornell's version. Cornell himself said he was 'flattered' and praised David Cook's performance. David Cook was taken to the hospital after the top-nine performance show due to heart palpitations and high blood pressure.
ground_truth: Tim Buckley
sub_queries: Castro's performance sent which singer's version to the top of a Billboard chart? Answer: Jeff Buckley
Jeff Buckley >> father Answer: Tim Buckley