Question: Both the songs U.F.O. and Princess of China are on the album Mylo Xyloto from which British rock band?

Context paragraphs:
Up with the Birds: "Up with the Birds" is a song by British rock band Coldplay.  It was written by all four members of the band for their fifth studio album, "Mylo Xyloto".  The track's first section is built around organ, strings and piano, creating a downbeat, quiet mood, while the track's second section is dominated by guitars and drums, featuring a faster tempo.  The track also features samples from "Driven by You" (1991) by English musician Brian May and a lyrical interpolation of "Anthem" (1992) by Canadian musician Leonard Cohen.

Mylo Xyloto: Mylo Xyloto is the fifth studio album by British rock band Coldplay.  It was first released on 19 October 2011, by EMI Music Japan, and in other countries beginning on 21 October by Parlophone; it was later released on 25 October in the United States, by Capitol Records.  The band collaborated closely with acclaimed producer Brian Eno following their successful collaborations on "Viva la Vida or Death and All His Friends", the band's fourth studio album.

Paradise (Coldplay song): "Paradise" is a song by the British rock band Coldplay.  The song was released on 12 September 2011 as the second single from their fifth album, "Mylo Xyloto".  The song received its radio debut at 7:50 a.m. on "The Chris Moyles Show" (BBC Radio 1) on 12 September 2011.  According to Coldplay's official website, the single was not initially chart eligible in the United Kingdom, because it was available on iTunes as an "instant grat" (immediate download) when pre-ordering the album.  Following the release of the album on 30 October 2011, the song became chart eligible in the UK and entered the UK Singles Chart at number 14, before taking the number 1 spot on its tenth week, becoming the band's second number-one single after "Viva la Vida" in 2008.  The song was met with positive reviews, and was the best selling rock song of 2011 in the United Kingdom, selling 410,000 copies.

Major Minus: "Major Minus" is a song by British rock band Coldplay and the eighth track from their fifth studio album "Mylo Xyloto".  The song takes its title from a fictional character of the same name created by the band, who is based on a collection of various media oligarchs and politicians.

Princess of China: "Princess of China" is a duet recorded by British rock band Coldplay and Barbadian singer Rihanna for Coldplay's fifth studio album "Mylo Xyloto".  The song was written by band members Guy Berryman, Jonny Buckland, Will Champion, and Chris Martin, along with Brian Eno, and is influenced by the music genres of electronic rock, electropop and R&B.  The song was released as the fourth single from "Mylo Xyloto" and was sent to US Mainstream radio on 14 February 2012.  It was later released as a digital download on 13 April 2012.  A companion EP to the single, featuring an acoustic version of the song, was released on 1 June 2012.

U.F.O. (Coldplay song): "U.F.O." is a song by British rock band Coldplay.  It was written by all four members of the band for their fifth studio album, "Mylo Xyloto".  The album's opening track, "Mylo Xyloto" and "A Hopeful Transmission" are based on the chords from the second half of this song.  After the song ends, the track includes a short instrumental section (reminiscent of "Prospekt's March/Poppyfields") that segues into the following track, "Princess of China".  The track also features samples from a sample of Sigur Rós' "Takk...".

Hurts Like Heaven: "Hurts Like Heaven" is a song by British rock band Coldplay.  It was written by all members of the band and producer Brian Eno for Coldplay's fifth studio album, "Mylo Xyloto".  The song was released as the album's sixth overall single on 27 July 2012.

Mylo Xyloto Tour: The Mylo Xyloto Tour was the fifth concert tour by British band Coldplay.  Launched in support of their fifth studio album "Mylo Xyloto" (2011), the tour began in the spring of 2011 with a series of one-off concerts in Europe and festivals including Rock in Rio in Brazil.  A full-production show began in December 2011 in the United Kingdom.  It continued into 2012 with shows in North America, Europe and Oceania.

Coldplay Live 2012: Coldplay Live 2012 is the collective name for the official documentation of the Mylo Xyloto Tour, performed, recorded and released by British alternative rock band Coldplay.  The project consists of a worldwide theatrical and home media film release, Coldplay's third live album, after "Coldplay Live 2003" and "LeftRightLeftRightLeft", and a 183-page e-book depicting the tour.  The film and album were recorded over many dates over the 2011 Festival Tour and the Mylo Xyloto Tour beginning in October 2011 and ending in September 2012.  The film was opened for one night only on 13 November 2012, at select cinemas around the world.  The DVD and Blu-ray release of the film and the live album release occurred on 14 November 2012.

Ghost Stories (Coldplay album): Ghost Stories is the sixth studio album by British rock band Coldplay.  Co-produced by the band with Paul Epworth along with returning "Mylo Xyloto" producers Daniel Green and Rik Simpson, it was released by Parlophone on 16 May 2014.  The album was released by Atlantic Records in North America on 19 May 2014.  It is the first album by the band in North America under Atlantic, after Coldplay were transferred from Capitol Records in 2013, following the purchase of EMI and its assets by the Universal Music Group in 2012.

Supporting paragraphs: U.F.O. (Coldplay song) Princess of China
Answer: Coldplay