With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: U2 is an African band.
text_B: U2 are an Irish rock band from Dublin formed in 1976 .. Dublin. Dublin. rock. rock music. The group consists of Bono -LRB- lead vocals and rhythm guitar -RRB- , the Edge -LRB- lead guitar , keyboards , and backing vocals -RRB- , Adam Clayton -LRB- bass guitar -RRB- , and Larry Mullen Jr. -LRB- drums and percussion -RRB- .. Bono. Bono. Adam Clayton. Adam Clayton. the Edge. the Edge. Initially rooted in post-punk , U2 's sound grew to incorporate influences from many genres of popular music , yet has maintained an anthemic sound built on Bono 's expressive vocals and the Edge 's effects-based guitar textures .. post-punk. post-punk. Bono. Bono. the Edge. the Edge. popular music. popular music. effects. Effects unit. textures. texture ( music ). Their lyrics , often embellished with spiritual imagery , focus on personal themes and sociopolitical concerns .. Popular for their live performances , the group have staged several ambitious and elaborate tours over their career .. The band formed at Mount Temple Comprehensive School in 1976 when the members were teenagers with limited musical proficiency .. Mount Temple Comprehensive School. Mount Temple Comprehensive School. Within four years , they signed with Island Records and released their debut album , Boy -LRB- 1980 -RRB- .. Island. Island Records. Island Records. Island Records. Boy. Boy ( album ). Subsequent work such as their first UK number-one album , War -LRB- 1983 -RRB- , and the singles `` Sunday Bloody Sunday '' and `` Pride -LRB- In the Name of Love -RRB- '' helped establish U2 's reputation as a politically and socially conscious group .. War. War ( U2 album ). Sunday Bloody Sunday. Sunday Bloody Sunday. By the mid-1980s , they had become renowned globally for their live act , highlighted by their performance at Live Aid in 1985 .. Live Aid. Live Aid. The group 's fifth album , The Joshua Tree -LRB- 1987 -RRB- , made them international superstars and was their greatest critical and commercial success .. The Joshua Tree. The Joshua Tree. Topping music charts around the world , it produced their only number-one singles in the US , `` With or Without You '' and `` I Still Have n't Found What I 'm Looking For '' .. With or Without You. With or Without You. Facing a backlash and creative stagnation , U2 reinvented themselves in the 1990s through a new musical direction and public image .. Beginning with their acclaimed seventh album , Achtung Baby -LRB- 1991 -RRB- , and the multimedia intensive Zoo TV Tour , the band integrated influences from alternative rock , electronic dance music , and industrial music into their sound , and embraced a more ironic , flippant image .. alternative rock. alternative rock. rock. rock music. Achtung Baby. Achtung Baby. Zoo TV Tour. Zoo TV Tour. electronic dance music. electronic dance music. industrial music. industrial music. This experimentation continued through their ninth album , Pop -LRB- 1997 -RRB- , and the PopMart Tour , which were mixed successes .. Pop. Pop ( U2 album ). PopMart Tour. PopMart Tour. U2 regained critical and commercial favour with the records All That You Ca n't Leave Behind -LRB- 2000 -RRB- and How to Dismantle an Atomic Bomb -LRB- 2004 -RRB- , which established a more conventional , mainstream sound for the group .. How to Dismantle an Atomic Bomb. How to Dismantle an Atomic Bomb. Their U2 360 ° Tour of 2009 -- 2011 is the highest-attended and highest-grossing concert tour in history .. highest-grossing concert tour. List of highest-grossing concert tours. The group 's thirteenth album , Songs of Innocence -LRB- 2014 -RRB- , was released at no cost through the iTunes Store , but received criticism for its automatic placement in users ' music libraries .. Songs of Innocence. Songs of Innocence ( U2 album ). iTunes Store. iTunes Store. U2 have released 13 studio albums and are one of the world 's best-selling music artists of all time , having sold more than 170 million records worldwide .. best-selling music artists of all time. List of best-selling music artists. They have won 22 Grammy Awards , more than any other band , and in 2005 , they were inducted into the Rock and Roll Hall of Fame in their first year of eligibility .. Rock. Rock music. Rock and Roll Hall of Fame. Rock and Roll Hall of Fame. Rolling Stone ranked U2 at number 22 on its list of the `` 100 Greatest Artists of All Time '' .. Rolling Stone. Rolling Stone. Throughout their career , as a band and as individuals , they have campaigned for human rights and philanthropic causes , including Amnesty International , Jubilee 2000 , the ONE / DATA campaigns , Product Red , War Child , and Music Rising .. War. War ( U2 album ). Amnesty International. Amnesty International. Jubilee 2000. Jubilee 2000. ONE. ONE Campaign. DATA. DATA. Product Red. Product Red. War Child. War Child ( charity ). Music Rising. Music Rising
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