which was their debut album?
"Boy"
U2
"Boy" 
what is no line on the horizon? It is the twelfth studio album by Irish rock band U2. when was it released? On 27 February 2009 who was the producer? Rick Rubin has it done any commercial performance? Debuted at number one in thirty countries, including Australia, Belgium, Canada, France, Ireland, Japan, the Netherlands, Portugal, the United Kingdom, and the United States. when was the band formed? Formed in 1976. who were the members of it? Bono, the Edge, Adam Clayton, and Larry Mullen Jr. what role did the first one do in it? Lead vocals and rhythm guitar what style of music did they follow? Rooted in post-punk
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U2 [SEP] Introduction
Within four years, they signed with Island Records and released their debut album, "Boy" (1980). Subsequent work such as their first UK number-one album, "War" (1983), and the singles "Sunday Bloody Sunday" and "Pride (In the Name of Love)" helped establish U2's reputation as a politically and socially conscious group. By the mid-1980s, they had become renowned globally for their live act, highlighted by their performance at Live Aid in 1985. The group's fifth album, "The Joshua Tree" (1987), made them international superstars and was their greatest critical and commercial success. Topping music charts around the world, it produced their only number-one singles in the US to date: "With or Without You" and "I Still Haven't Found What I'm Looking For".