Some context: Queen are a British rock band that formed in London in 1970. Their classic line-up was Freddie Mercury (lead vocals, piano), Brian May (lead guitar, vocals), Roger Taylor (drums, vocals), and John Deacon (bass guitar). Queen's earliest works were influenced by progressive rock, hard rock and heavy metal, but the band gradually ventured into more conventional and radio-friendly works by incorporating further styles, such as arena rock and pop rock, into their music.
On 25 and 26 April, May and Taylor appeared on the eleventh series of American Idol at the Nokia Theatre, Los Angeles, performing a Queen medley with the six finalists on the first show, and the following day performed "Somebody to Love" with the 'Queen Extravaganza' band. Queen were scheduled to headline Sonisphere at Knebworth on 7 July 2012 with Adam Lambert before the festival was cancelled. Queen's final concert with Freddie Mercury was in Knebworth in 1986. Brian May commented, "It's a worthy challenge for us, and I'm sure Adam would meet with Freddie's approval." Queen expressed disappointment at the cancellation and released a statement to the effect that they were looking to find another venue. Queen + Adam Lambert played two shows at the Hammersmith Apollo, London on 11 and 12 July 2012. Both shows sold out within 24 hours of tickets going on open sale. A third London date was scheduled for 14 July. On 30 June, Queen + Lambert performed in Kiev, Ukraine at a joint concert with Elton John for the Elena Pinchuk ANTIAIDS Foundation. Queen also performed with Lambert on 3 July 2012 at Moscow's Olympic Stadium, and on 7 July 2012 at the Municipal Stadium in Wroclaw, Poland. On 12 August 2012, Queen performed at the closing ceremony of the 2012 Summer Olympics in London. The performance at London's Olympic Stadium opened with a special remastered video clip of Mercury on stage performing his call and response routine during their 1986 concert at Wembley Stadium. Following this, May performed part of the "Brighton Rock" solo before being joined by Taylor and solo artist Jessie J for a performance of "We Will Rock You". On 20 September 2013, Queen + Adam Lambert performed at the iHeartRadio Music Festival at the MGM Grand Hotel & Casino in Las Vegas. Queen + Adam Lambert toured North America in Summer 2014 and Australia and New Zealand in August/September 2014. In an interview with Rolling Stone, May and Taylor said that although the tour with Lambert is a limited thing, they are open to him becoming an official member, and cutting new material with him. In November 2014 Queen released a new album Queen Forever. The album is largely a compilation of previously-released material but features three new Queen tracks featuring vocals from Mercury with backing added by the surviving members of Queen. One new track, "There Must Be More To Life Than This", is a duet between Mercury and Michael Jackson. In 2016, the group embarked across Europe and Asia on the Queen + Adam Lambert 2016 Summer Festival Tour. This included closing the Isle of Wight Festival in England on 12 June where they performed "Who Wants to Live Forever" as a tribute to the victims of the mass shooting at a gay nightclub in Orlando, Florida earlier that day. On 12 September they performed at the Park Hayarkon in Tel-Aviv, Israel for the first time in front of 58,000 people. As part of the Queen + Adam Lambert Tour 2017-2018, the band toured North America in the summer of 2017, toured Europe in late 2017, before playing dates in Australia and New Zealand in February and March 2018.
what did they do on the show?
A: performing a Queen medley with the six finalists on the first show, and the following day performed "Somebody to Love"

Some context: Timur was born in Transoxiana near the city of Kesh (modern Shahrisabz, Uzbekistan) some 80 kilometres (50 mi) south of Samarkand, part of what was then the Chagatai Khanate. His father, Taraqai, was a minor noble of the Barlas, a Mongolian tribe that had been turkified in many aspects. According to Gerard Chaliand, Timur was a Muslim, and he saw himself as Genghis Khan's heir. Though not a Borjigid or a descendent of Genghis Khan, he clearly sought to invoke the legacy of Genghis Khan's conquests during his lifetime.
It was in this period that Timur reduced the Chagatai khans to the position of figureheads while he ruled in their name. Also during this period, Timur and his brother-in-law Husayn, who were at first fellow fugitives and wanderers in joint adventures, became rivals and antagonists. The relationship between them began to become strained after Husayn abandoned efforts to carry out Timur's orders to finish off Ilya Khoja (former governor of Mawarannah) close to Tishnet. Timur began to gain a following of people in Balkh, consisting of merchants, fellow tribesmen, Muslim clergy, aristocracy and agricultural workers, because of his kindness in sharing his belongings with them. This contrasted Timur's behavior with that of Husayn, who alienated these people, took many possessions from them via his heavy tax laws and selfishly spent the tax money building elaborate structures. At around 1370 Husayn surrendered to Timur and was later assassinated, which allowed Timur to be formally proclaimed sovereign at Balkh. He married Husayn's wife Saray Mulk Khanum, a descendant of Genghis Khan, allowing him to become imperial ruler of the Chaghatay tribe. One day Aksak Temur spoke thusly: "Khan Zudei (in China) rules over the city. We now number fifty to sixty men, so let us elect a leader." So they drove a stake into the ground and said: "We shall run thither and he among us who is the first to reach the stake, may he become our leader". So they ran and Aksak Timur, as he was lame, lagged behind, but before the others reached the stake he threw his cap onto it. Those who arrived first said: "We are the leaders." ["But,"] Aksak Timur said: "My head came in first, I am the leader." Meanwhile, an old man arrived and said: "The leadership should belong to Aksak Timur; your feet have arrived but, before then, his head reached the goal." So they made Aksak Timur their prince.
Did he accomplish that through battle or subterfuge?
A:
he ruled in their name.