U2

1. An American spy plane that flys at high altitudes to avoid detection and interception. (see U-2)

2. An Irish rock band featuring Bono? (Paul David Hewson) on vocals and guitar, [The Edge]? (David Howell Evans) on guitar, pianos, vocals, and sometimes bass, [Adam Clayton]? on bass and sometimes guitar, and [Larry Mullen]? on drums. The band is politically active in human rights causes.