Question: What manager of the performer of Immigrant Song tried to sign Queen?

full_context: Document 1: Queen (band): During 1976, Queen played one of their most famous gigs, a free concert in Hyde Park, London. A concert organised by the entrepreneur Richard Branson, it set an attendance record with 150,000 people confirmed in the audience. On 1 December 1976, Queen were the intended guests on London's early evening Today programme, but they pulled out at the last-minute, which saw their late replacement on the show, EMI labelmate the Sex Pistols, give their seminal interview. During the A Day at the Races Tour in 1977, Queen performed sold-out shows at Madison Square Garden, New York, in February, and Earls Court, London, in June.
Document 2: Over the Hills and Far Away (Led Zeppelin song): "Over the Hills and Far Away" is the third track from English rock band Led Zeppelin's 1973 album "Houses of the Holy". It was released as a single, with "Dancing Days" as the B-side, in the US.
Document 3: Queen (band): In 1972, Queen entered discussions with Trident Studios after being spotted at De La Lane Studios by John Anthony and after discussions were offered a management deal by Norman Sheffield under Neptune Productions, a subsidiary of Trident to manage the band and enable them to use the facilities at Trident to record new material whilst the management search for a record label to sign Queen. This suited both parties at the time as Trident were expanding into management and Queen under the deal were able to make use of the hi-tech recording facilities shared by bands at the time such as the Beatles and Elton John to produce new material. However, Trident found it difficult to find a label for a band bearing a name with such connotation during the early 1970s.
Document 4: Queen (band): That year, Queen began The Works Tour, the first tour to feature keyboardist Spike Edney as an extra live musician. The tour featured nine sold-out dates in October in Bophuthatswana, South Africa, at the arena in Sun City. Upon returning to England, they were the subject of outrage, having played in South Africa during the height of apartheid and in violation of worldwide divestment efforts and a United Nations cultural boycott. The band responded to the critics by stating that they were playing music for fans in South Africa, and they also stressed that the concerts were played before integrated audiences. Queen donated to a school for the deaf and blind as a philanthropic gesture but were fined by the British Musicians' Union and placed on the United Nations' blacklisted artists.
Document 5: Queen (band): In 1975, the band left for a world tour with each member in Zandra Rhodes-created costumes and accompanied with banks of lights and effects. They toured the US as headliners, and played in Canada for the first time. In September, after an acromonious split with Trident, the band negotiated themselves out of their Trident Studios contract and searched for new management. One of the options they considered was an offer from Led Zeppelin's manager, Peter Grant. Grant wanted them to sign with Led Zeppelin's own production company, Swan Song Records. The band found the contract unacceptable and instead contacted Elton John's manager, John Reid, who accepted the position.
Document 6: Queen (band): On 7 May 2010, May and Taylor announced that they were quitting their record label, EMI, after almost 40 years. On 20 August 2010, Queen's manager Jim Beach put out a Newsletter stating that the band had signed a new contract with Universal Music. During an interview for Hardtalk on the BBC on 22 September, May confirmed that the band's new deal was with Island Records, a subsidiary of Universal Music Group. For the first time since the late 1980s, Queen's catalogue will have the same distributor worldwide, as their current North American label—Hollywood Records—is currently distributed by Universal (for a time in the late 1980s, Queen was on EMI-owned Capitol Records in the US).
Document 7: Stairway to Heaven: ``Stairway to Heaven ''is a song by the English rock band Led Zeppelin, released in late 1971. It was composed by guitarist Jimmy Page and vocalist Robert Plant for the band's untitled fourth studio album (often called Led Zeppelin IV). It is often referred to as one of the greatest rock songs of all time.
Document 8: The Battle of Evermore: "The Battle of Evermore" is a folk duet sung by Robert Plant and Sandy Denny, featured on Led Zeppelin's untitled 1971 album, commonly known as "Led Zeppelin IV". The song's instrumentation features acoustic guitar and mandolin playing.
Document 9: Queen (band): Between 2005 and 2006, Queen + Paul Rodgers embarked on a world tour, which was the first time Queen toured since their last tour with Freddie Mercury in 1986. The band's drummer Roger Taylor commented; "We never thought we would tour again, Paul [Rodgers] came along by chance and we seemed to have a chemistry. Paul is just such a great singer. He's not trying to be Freddie." The first leg was in Europe, the second in Japan, and the third in the US in 2006. Queen received the inaugural VH1 Rock Honors at the Mandalay Bay Events Center in Las Vegas, Nevada, on 25 May 2006. The Foo Fighters paid homage to the band in performing "Tie Your Mother Down" to open the ceremony before being joined on stage by May, Taylor, and Paul Rodgers, who played a selection of Queen hits.
Document 10: Stairway to Heaven: "Stairway to Heaven" is a song by the English rock band Led Zeppelin, released in late 1971. It was composed by guitarist Jimmy Page and vocalist Robert Plant for the band's untitled fourth studio album (often called "Led Zeppelin IV"). It is often referred to as one of the greatest rock songs of all time.
Document 11: Queen (band): After fans noticed Mercury's increasingly gaunt appearance in 1988, rumours began to spread that Mercury was suffering from AIDS. Mercury flatly denied this, insisting he was merely "exhausted" and too busy to provide interviews. The band decided to continue making albums, starting with The Miracle in 1989 and continuing with Innuendo in 1991. Despite his deteriorating health, the lead singer continued to contribute. For the last two albums made while Mercury was still alive, the band credited all songs to Queen, rather than specific members of the group, freeing them of internal conflict and differences. In 1990, Queen ended their contract with Capitol and signed with Disney's Hollywood Records, which has since remained the group's music catalogue owner in the United States and Canada. That same year, Mercury made his final public appearance when he joined the rest of Queen to collect the Brit Award for Outstanding Contribution to British Music.
Document 12: Immigrant Song: "Immigrant Song" is a 1970 song by the English rock band Led Zeppelin. It is built upon a repeating riff and features lyrical references to Norse mythology, with singer Robert Plant's howling vocals mentioning war-making and Valhalla. The song was included on their third studio album, "Led Zeppelin III" and released as a single. Several live recordings have also been issued on various Led Zeppelin albums. Other artists have recorded renditions of the song or performed it live.
Document 13: Kashmir (song): "Kashmir" is a song by the English rock band Led Zeppelin. Included on their sixth album "Physical Graffiti" (1975), it was written by Jimmy Page and Robert Plant (with contributions from John Bonham) over a period of three years with lyrics dating to 1973.
Document 14: Odin Owns Ye All: Odin Owns Ye All is the second full-length album by the Norwegian Viking metal band Einherjer. Its songs form a brief, but complete, narrative of the earth based on Norse mythology. The opening tracks tell the story of the giant Ymir, his death at the hands of Odin and his brothers, and the creation of the world. The later tracks tell of the murder of Balder that precipitates Ragnarok, followed by the destruction of the world and its rebirth from the sea. The album cover art is the painting “Odin and His Ravens” by Alan Lee.
Document 15: Queen (band): In 1982, the band released the album Hot Space, a departure from their trademark seventies sound, this time being a mixture of rock, pop rock, dance, funk, and R&B. Most of the album was recorded in Munich during the most turbulent period in the band's history, and Taylor and May lamented the new sound, with both being very critical of the influence Mercury's personal manager Paul Prenter had on the singer. May was also scathing of Prenter, who was Mercury's manager from the early 1980s to 1984, for being dismissive of the importance of radio stations, such as the US networks, and their vital connection between the artist and the community, and for denying them access to Mercury. The band stopped touring North America after their Hot Space Tour, as their success there had waned, although they would perform on American television for the only time during the eighth season premiere of Saturday Night Live. Queen left Elektra Records, their label in the United States, Canada, Japan, Australia, and New Zealand, and signed onto EMI/Capitol Records.
ground_truth: Peter Grant
sub_queries: Immigrant Song >> performer Answer: Led Zeppelin
What manager of Led Zeppelin tried to sign Queen? Answer: Peter Grant