U2 is an Irish rock band founded in 1976. They are known for their anthemic sound, spiritual lyrics, and socially conscious themes. They have released 14 studio albums, the most recent being "Songs of Experience" in 2017, on Interscope Records. Key albums include "The Joshua Tree" (1987), "Achtung Baby" (1991), and "All That You Can't Leave Behind" (2000). They have won 22 Grammy Awards, more than any other band.