An Irish rock band that formed as Feedback in 1976. By 1979, the band changed its name to U2 after Paul McGuiness became manager. The band's lineup is Bono, vocals, occasional guitar, The Edge, lead guitar, backing vocals, Adam Clayton, bass, Larry Mullen Jr., drums.

In 1980 U2 released its first album, Boy. Since then, their most famous works have been The Joshua Tree, 1987, Achtung Baby, 1991, and All that you can't Leave Behind, 2000. U2 have sold more than 50 million albums in the United States and their tours often sell out quickly. Currently, U2 is still active and working on a new album. Their lineup has remained the same since 1979.

Some hits include: I will Follow, New Year's Day, Sunday Bloody Sunday, Pride (In the Name of Love), With or Without You, Where the Streets have no Name, Desire, One, Mysterious Ways, Beautiful Day, The Sweetest Thing, and Vertigo.
"Screw this! U2 tickets sold out in like 12 seconds."
by Rusky May 06, 2008
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U2 is a successful, four-member Irish rock band formed in Dublin in the late 1970s.

Mention of this band generally polarizes opinion, with die hard fans referring to them as the greatest band in the world and non-fans referring to them as the worst, most pompous, least talented or most annoying band in the world. (U2's political activism produces the same disparity of opinion.)

NOTE: The second paragraph of this definition can be applied to most rock bands and various other celebrities, because it is apparently not enough for the human animal to say, "No, I don't care for ____" (fill in the blank) and leave it at that; the dislike must seemingly be expressed in hearty invective and insults as creative and inflammatory as the writer can produce. This behavior can be noted in most entries at Urban Dictionary which concern rock bands.
Fan: I love U2 (or other band that fan is enamored of), they are the greatest band in the world!
Non-fan: I hate them, they suck, they're awful and talentless and ugly and stupid and annoying and... (and so forth.)
by opusbowtie November 03, 2006
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An Irish Rock Band- there are 2 well known definitions.

1)Releasing many successful albums over 2 decades and continuing to perform their beautifully constructed songs with passion and a complete genuine belief in their lyrics- one of the greatest rock bands of our time.

some people (usually people who dislike Bonoand are so busy calling him a pompous self righteous arse that they fail to realise that they themselves are behaving like pompous self rightous arses.....or people who are half deaf) would use this definition for U2-

2)U2 r a overrated sucky Irash band wiv know talunt. Whhadayamean I cant sppell? I can sppell as gud as I can revew moosic...

Definition number one is probably the more popular of the two. Mainly because it is the most accurate one.
1) "I am going to see U2- the greatest band on the planet- tonight."

2)"I hate U2...their lyrics are dumb. But the Wiggles rock my world. So deep..."
by Naomo December 25, 2004
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1) A spy plane still in service today.

2) One of the greatest rock bands ever, maybe even the greatest. I know they're the greatest band ever to come out Ireland, they achived popular sucess and much fame... however, they don't care about the money or the drugs, they care about us and our world... they have a great political stance.. Bono stands up for many causes escipally in thrid-world countries (mostly African).
1) A U2 flown by Francis Gary Powers was shot down over the USSR in 1960.

2)"I'm gonna go get How to Dismantle an Atomic Bomb when it comes out beucase U2 rocks."
by AutisticPsycho October 16, 2004
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U2 is a four member Irish rock band that has been fairly successful so far. I wouldn't go as far as calling them the best band in the world, But they are in the top 5 anyways.
Hey dude, Hear about U2?

Yeah. They rock.
by Cairnage May 07, 2009
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the greatest band in the world right now - while there's crappy nu-metal, corporate pop, hat acts, violence and kinky sex (and other things) glorifying rap, emo, poserpunk and other trash - then there's U2. They are true originals, their lyrics tend to lean to the spiritual side (as well as being mature and intelligent in the first place), and the guitarist is the aptly named "Edge". They hail from Dublin, Ireland and have been together for over 30 years and they still make top-quality rock and roll. That's right, the most innovative, original and inspiring rock supergroup in the past 3 decades doesn't come from America, doesn't come from Britain, but from Ireland. Imagine that. I saw them in concert twice and they kick the crap out of today's music anyday. Oh, and did I forget to say - U2 ROCKS!
Chuck: So what did you do this weekend?
Me: I went out to Oakland Stadium and saw U2.
Chuck: But I was at Yerba Buena island all weekend.
by I Saw U2 Live Twice November 12, 2006
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An Irish rock and roll band originally known as The Hype, 20 years later they finally live up to it. U2 is the best band in the world.
by Johnny Boomslang January 28, 2003
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