U2 is a renowned Irish rock band formed in Dublin in 1976. The group consists of Bono (Paul David Hewson) on vocals and guitar, The Edge (David Howell Evans) on guitar, keyboards, and backing vocals, Adam Clayton on bass guitar, and Larry Mullen Jr. on drums and percussion. The band originally came together when Mullen posted a notice on the bulletin board at Mount Temple Comprehensive School, seeking musicians for a new band. Initially called "Feedback," and then "The Hype," the group eventually settled on the name U2, suggested by a friend of the band. Their breakthrough came in the early 1980s with the release of "Boy" in 1980, which featured the hit single “I Will Follow." Their subsequent albums, including "October" (1981) and "War" (1983), solidified their place in the rock pantheon. "War" included the politically charged anthem "Sunday Bloody Sunday." The band's sound evolved with the production partnership of Brian Eno and Daniel Lanois in the mid-1980s, leading to critically lauded albums such as "The Unforgettable Fire" (1984) and the iconic "The Joshua Tree" (1987), the latter of which won them international acclaim. "The Joshua Tree" featured signature tracks like “With or Without You” and “I Still Haven't Found What I’m Looking For,” and won two Grammy Awards. In the 1990s, U2 reinvented their sound with the release of "Achtung Baby" (1991) and subsequent albums "Zooropa" (1993) and "Pop" (1997), demonstrating their versatility and willingness to take risks. The band continued to draw massive audiences with extensive tours, including the groundbreaking Zoo TV Tour and PopMart Tour. The 2000s saw a return to a more traditional rock sound with albums like "All That You Can’t Leave Behind" (2000) and "How to Dismantle an Atomic Bomb" (2004), both of which received critical accolades and multiple Grammy Awards. Songs such as “Beautiful Day” and “Vertigo” became instant classics. Throughout their career, U2 has been known for their activism, particularly in areas like human rights and social justice. Bono, in particular, has been a prominent advocate for causes ranging from debt relief to AIDS awareness. The EDGE has also been active in music industry initiatives, including co-founding the "Music Rising" charity. Despite changes in the music industry, U2 has maintained a consistent presence, releasing albums such as "No Line on the Horizon" (2009), "Songs of Innocence" (2014), and "Songs of Experience" (2017). The band’s innovative approach to music and live performance, combined with their commitment to social causes, has cemented their legacy as one of the most influential and enduring acts in rock history.