Question:  "Cedars of Lebanon" is the eleventh and final track on their 2009 album "No Line on the Horizon", the twelfth studio album by what Irish rock band?
Context: "Betcha Gon' Know (The Prologue)" is a song by American singer and songwriter Mariah Carey, from her twelfth studio album "Memoirs of an Imperfect Angel" (2009).  It was co-written and co-produced by Carey, Christopher "Tricky" Stewart, James "Big Jim" Wright and The-Dream.  Due to the success of her eleventh studio album, "E=MC²" (2008), and its lead single "Touch My Body", Carey had planned to embark on an extensive tour in support of the effort, but poor charting subsequent singles from the album prompted a halt on promotion by her label, Island Records.  It was also rumored that Carey had become pregnant and miscarried, though she never addressed it until late 2010.  She began to work on her twelfth studio effort, "Memoirs of an Imperfect Angel" throughout 2009, and it was released later on in the year.  In October 2010, Carey revealed that she had in fact been pregnant in late 2008, and that was the reason why tour plans were cancelled. "Breathe" is a song by Irish rock band U2 and the tenth track on their 2009 album "No Line on the Horizon".  The lyrics detail an outburst from the song's narrator.  The song was developed primarily by guitarist the Edge, with musical influences from Jimmy Page and Jack White.  The track was mixed numerous times before the band decided to rewrite it. "Get On Your Boots" is a song by Irish rock band U2 and the sixth track from their 2009 album "No Line on the Horizon".  The song was released as the album's lead single on 23 January 2009.  The physical format was released on 16 February.  The video received its premiere on 6 February 2009. No Line on the Horizon is the twelfth studio album by Irish rock band U2.  It was produced by Brian Eno, Daniel Lanois, and Steve Lillywhite, and was released on 27 February 2009.  It was the band's first record since "How to Dismantle an Atomic Bomb" (2004), marking the longest gap between studio albums of their career to that point.  The band originally intended to release the songs as two EPs, but later combined the material into a single record.  Photographer Anton Corbijn shot a companion film, "Linear", which was released alongside the album and included with several special editions. "Cedars of Lebanon" is a song by Irish rock band U2.  It is the eleventh and final track on their 2009 album "No Line on the Horizon".  It is sung in the character of a war correspondent who is "squeezing complicated lives into a simple headline" and who "observes "this shitty world" where the aroma of a rose "lingers and then it just goes".  The song samples producer Brian Eno's collaboration with Harold Budd, "Against the Sky", from the 1984 album "The Pearl". "Fez – Being Born" is a song by Irish rock band U2 and the eighth track on their 2009 album "No Line on the Horizon".  It was planned for the track to open the album, but "No Line on the Horizon" was chosen instead.  The song had several different titles during the recording sessions, including "Chromium Chords" and "Tripoli", and was the result of a fusion of two different songs during the recording sessions. "No Line on the Horizon" is a song by rock band U2; it is the opening and title track on their 2009 album "No Line on the Horizon".  An alternate version, "No Line on the Horizon 2", was included as a bonus track on some versions of the album.  The song was developed during the band's earliest sessions in Fez, Morocco, and began with a drum beat by drummer Larry Mullen, Jr. The lyrics were inspired by a photograph of Lake Constance, titled "Boden Sea".  Many reviews of the song compared it to the band's other guitar-heavy songs, including "Elevation", "Vertigo", "Zoo Station", and "The Fly". "White as Snow" is a song by Irish rock band U2 and the ninth track on their 2009 album "No Line on the Horizon".  It was written from the perspective of a dying soldier serving in Afghanistan, and lasts the length of time it takes him to die.  The track is based on the hymn "Veni, veni Emmanuel", and is the only political song on the album. "Stand Up Comedy" is a song by Irish rock band U2.  It is the seventh track on their 2009 album "No Line on the Horizon".  The track was first developed during the recording sessions in Fez, Morocco, but the band struggled to complete the song and it was recreated numerous times over the following 16 months.  It underwent several title changes during this time, being referred to first as "For Your Love", then "Stand Up", and finally "Stand Up Comedy". "Unknown Caller" is a song by Irish rock band U2 and the fourth track on their 2009 album "No Line on the Horizon".  It was written from the perspective of a drug addict, who begins to receive bizarre text messages on his cellphone.  The song was developed very early during the "No Line on the Horizon" sessions, and was recorded in a single take.
Answer: U2