U2 is an Irish rock band from Dublin, which started in post-punk but soon incorporated elements from various musical genres (funk, electronica, blues). Composed of Bono (vocals and guitar), The Edge (guitar, keyboards, and vocals), Adam Clayton (bass guitar), and Larry Mullen Jr (drums and percussion), the band is noted for a sound built on melodic instrumentals, and lyrics, filled with spiritual imagery, personal themes and sociopolitical concerns. U2 sold more than 150 million records worldwide, and created some of the most lavish, memorable and profitable concert tours in history. Their success also helped the bandmembers advocate for human rights and philanthropic causes.