Under a Blood Red Sky is a live mini-album by Irish rock band U2, produced by Jimmy Iovine and released on 21 November 1983.

[11] The record's eight tracks were compiled from three concerts during the group's 1983 War Tour, including two songs from their 5 June performance at Red Rocks Amphitheatre.

[12] In November 2023, the band celebrated the 40th anniversary of the album with a newly remastered release on Record Store Day Black Friday.

[13][14] All tracks are written by U2, with lyrics by BonoNotes During the performance of "The Electric Co.", Bono included a 27-second snippet of Stephen Sondheim's "Send in the Clowns".

When Under a Blood Red Sky was released, U2 failed to get permission and pay the appropriate licensing and royalty fees to include Sondheim's tune on the album.