Bloody Sunday ( Under Blood Red Sky ) — U2 - Sunday

The track's signature driving beat was composed by Larry Mullen Jr. to resemble a military band. The original studio version was recorded in a staircase at Windmill Lane Studios to capture a natural, echoing reverb.

The performance of "Sunday Bloody Sunday" from the live album is widely considered the defining moment that launched U2 into global superstardom. Recorded on June 5, 1983, at the Red Rocks Amphitheatre in Colorado, the footage became the song's official music video and a staple on MTV. Key Historical & Useful Context u2 - Sunday bloody Sunday ( Under Blood Red Sky )

To distance the song from sectarian violence in Northern Ireland, Bono famously introduced it at Red Rocks with the disclaimer, "This is not a rebel song. This song is 'Sunday Bloody Sunday'" . He did this to ensure the track was understood as a non-partisan plea for peace rather than a call to arms. The track's signature driving beat was composed by

The imagery of Bono waving a large white flag of peace amidst a "crimson mist"—created by the red stage lights reflecting off rain and the natural red rocks of the venue—was named by Rolling Stone as one of the "50 Moments that Changed the History of Rock and Roll" . The performance of "Sunday Bloody Sunday" from the

While originally written about "The Troubles" in Ireland—specifically the 1972 massacre in Derry—U2 has frequently re-contextualized the song for other conflicts, including the 2002 Bali bombings and the 2009 Iranian election protests.