"Window in the Skies" is a song by rock band U2 and is one of two new songs featured on their 2006 compilation album U218 Singles. It was released on 1 January 2007 as the album's second single. It was recorded in September 2006 at Abbey Road Studios in London and produced by Rick Rubin. The song was nominated for a Grammy Award for Best Pop Performance by a Duo or Group with Vocals.

The song reached number one on the Canadian Singles Chart and Dutch Top 40, replacing U2's previous single "The Saints Are Coming" (with Green Day) at the top in both charts.

There are two different music videos for this song.

U2 released the first music video for "Window in the Skies" on 20 November 2006, after the completion of their Australian leg of the Vertigo tour. A second version of the video was released a few weeks later.

The first video, directed by Gary Koepke, is a montage that includes nearly 100 clips taken from footage from the previous 50 years of other famous musicians performing in concert. The clips were selected and edited together so that either the lip movements or the finger movements of the musicians, who actually were performing other songs, match up with either the lyrics or the music of the U2 song.

The only confirmed location of the video is the Corner Hotel in Richmond in Melbourne, Australia. The band is featured only very briefly in the crowds as fans.

The second video, directed by Jonas Odell, is another montage. The camera flies through a surreal landscape with floating buildings and still images, mostly of the band from their U2 By U2 autobiography, morphing into each other.

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