Question: Which English Rock band was announced as a headliner at T in the Park 2012?

full_context: Document 1: Spring Awakening (festival): Spring Awakening was founded as a concert series in 2008. The event eventually outgrew the theater, and in 2012 SAMF was turned into a two-day outdoor music festival at Soldier Field by the Chicago-based promoting agency React Presents. In 2013, Spring Awakening Music Festival expanded to three days with over 90,000 people in attendance. SAMF has been held either the second or third weekend of June Over the years, the Festival has become increasingly popular due to the large fan base of electronic dance music in the Chicago area. As people now come from across the globe just to attend the Festival, there are discussed rumors that the Festival could be extending onwards towards many other states.
Document 2: T in the Park 2013: T in the Park 2013 was a three-day music festival which took place between 11–14 July 2013 in Balado, Kinross. It was the 20th Anniversary #T20 of the Scottish music festival Rihanna and Mumford and Sons were announced as the first and second headliner acts on 4 December 2012. Others acts confirmed on the same day were Jake Bugg, Alt-J, Of Monsters and Men, The Script, Paloma Faith. On 5 December 2012 The Killers were announced as third headliner act and other acts confirmed were Two Door Cinema Club and Azealia Banks. On 13 December 2012 it was announced that Emeli Sandé would return to the music festival for its 20th anniversary. On 13 February 2013, Germany Electronic band Kraftwerk were added to the line-up.
Document 3: The Who: The Who are an English rock band that formed in 1964. Their classic line-up consisted of lead singer Roger Daltrey, guitarist and singer Pete Townshend, bass guitarist John Entwistle, and drummer Keith Moon. They are considered one of the most influential rock bands of the 20th century, selling over 100 million records worldwide and holding a reputation for their live shows and studio work.
Document 4: Ian Brown: Ian George Brown (born 20 February 1963) is an English musician. He is the lead singer of the alternative rock band the Stone Roses from their formation in 1983. Following the split he began a solo career, releasing six studio albums, a greatest hits compilation, a remix album and 17 singles. He has performed solo shows in 45 countries. He returned to singing for the Stone Roses on 19 October 2011. On 20 October, he put out a statement to say that although he had reunited with the band, it did not spell the end of his solo endeavours. Brown is also known for a cameo role in "Harry Potter and the Prisoner of Azkaban".
Document 5: Oasis (band): Oasis were an English rock band formed in Manchester in 1991. Developed from an earlier group, the Rain, the band originally consisted of Liam Gallagher (vocals and tambourine), Paul "Bonehead" Arthurs (guitar), Paul "Guigsy" McGuigan (bass guitar), and Tony McCarroll (drums, percussion). They were later joined by Liam's older brother Noel Gallagher (lead guitar and vocals) as a fifth member, becoming the band's settled line-up until April 1995.
Document 6: 2013 Rose of Tralee: The 2013 Rose of Tralee was the 54th edition of the annual Irish international festival. The festival ran for a total of 7 days; two additional days were added due to The Gathering Ireland 2013. The festival ran from 14–20 August; concluding with the televised event on the final two nights. Many acts performed in Tralee during the festival, including; JLS, Ryan Dolan, The Coronas, Sharon Shannon and The Stunning. Shane Filan made his debut solo performance during the televised selection show on 20 August.
Document 7: T in the Park 2012: T in the Park 2012 was a three-day music festival which took place from 6–8 July 2012 in Balado, Kinross. The Stone Roses were announced as the first headline act on 8 November 2011, appearing on Saturday 7 July 2012. Snow Patrol and Kasabian were later confirmed to also be headlining on Friday 6 July and Sunday 8 July respectively. This year marks the first time all three days of the festival will have an equal capacity, after councillors granted a request to raise Friday's capacity by 10,000. This approval brings Friday in line with the festivals 85,000 capacity previously restricted to Saturday and Sunday.
Document 8: The Rolling Stones: The Rolling Stones are an English rock band formed in London in 1962. The first stable line-up consisted of Brian Jones (guitar, harmonica), Mick Jagger (lead vocals), Keith Richards (guitar, backing vocals), Bill Wyman (bass), Charlie Watts (drums), and Ian Stewart (piano). Stewart was removed from the official line-up in 1963 but continued as a touring member until his death in 1985. Jones left the band less than a month prior to his death in 1969, having already been replaced by Mick Taylor, who remained until 1974. After Taylor left the band, Ronnie Wood took his place in 1975 and has been on guitar in tandem with Richards ever since. Following Wyman's departure in 1993, Darryl Jones joined as their touring bassist. Touring keyboardists for the band have been Nicky Hopkins (1967–1982), Ian McLagan (1978–1981), Billy Preston (through the mid-1970s) and Chuck Leavell (1982–present). The band was first led by Jones, but after teaming as the band's songwriters, Jagger and Richards assumed leadership while Jones dealt with legal and personal troubles.
Document 9: Pearl Jam 2012 Tour: The Pearl Jam 2012 Tour was a concert tour by the American rock band Pearl Jam. The first leg of the tour consisted of thirteen shows in Europe, including a headling appearance at the Isle of Wight Festival. American punk band X were the opening band for the arena shows. Due to high ticket demand for pre-sale tickets, the third-party website handling the sale had to be taken offline. The Pearl Jam fanclub cited "an act of sabotage" to the site. For the second show at the Ziggo Dome in Amsterdam, a fan of the band created the setlist.
Document 10: The Stone Roses: The Stone Roses are an English rock band formed in Manchester in 1983. They were one of the pioneering groups of the Madchester movement that was active during the late 1980s and early 1990s. The band's most prominent lineup consists of vocalist Ian Brown, guitarist John Squire, bassist Mani, and drummer Reni.
Document 11: Field Day (festival): Field Day is a yearly outdoor music festival set up in Victoria Park in the London Borough of Tower Hamlets. The first festival took place on 11 August 2007. It has continuously expanded, and since its inception, ticket allocation for the festival has sold out every year.
Document 12: The Joshua Tree Tour 2017: The Joshua Tree Tour 2017 is an ongoing worldwide concert tour by rock band U2 commemorating the 30th anniversary of their 1987 album, "The Joshua Tree". The tour is visiting stadiums in 2017 across four legs: North America from May to July and in September, Europe from July to August, and Latin America in October. It began on 12 May 2017 in Vancouver, Canada. The band intends to play "The Joshua Tree" in its entirety on each date of the tour, marking the first live performances of the song "Red Hill Mining Town". It is the first time the group is touring in promotion of an album from their back catalogue, rather than a new release. As part of the tour, U2 headlined the Bonnaroo Music Festival in Manchester, Tennessee, in June.
Document 13: RockNess: RockNess was an annual music festival which took place in Scotland at Clune Farm, Dores, on the banks of Loch Ness near Inverness in the Scottish Highlands. The first Rockness festival took place on 24 June 2006 and continue to grow in size every year until 2013, which was the last running year of the festival. In June 2008 AEG took over as the main promoter of the festival. The festival was known as "the most beautiful festival in the world" and "the only festival with its own monster" due to its scenic location at Loch Ness which is the alleged home of the cryptozoological Loch Ness Monster. Despite the festival's name it was not solely a rock festival but presented music from all genres, especially mainstream and electronic music.
Document 14: Joy Division: Joy Division were an English rock band formed in 1976 in Salford, Greater Manchester. Originally named Warsaw, the band consisted of singer Ian Curtis, guitarist and keyboardist Bernard Sumner, bass player Peter Hook, and drummer Stephen Morris.
Document 15: The Stone Roses: Made of Stone: The Stone Roses: Made of Stone is a 2013 British music documentary on the acclaimed band The Stone Roses directed by Shane Meadows. The film stars band members Ian Brown, John Squire, Gary Mounfield and Alan Wren. The film was released on 5 June 2013 in the United Kingdom.
ground_truth: The Stone Roses