Blackout is the name of two fictional characters, both supervillains, in the Marvel Comics universe.

"Blackout" is a song written by David Bowie in 1977 for the album "Heroes". Author Nicholas Pegg described the track as "typical of the darkly exhilarating sonic schizophrenia of the "Heroes" album”, Nicholas Pegg (2000). The Complete David Bowie: p.40 while biographer David Buckley remarked on "a backing verging on industrial". David Buckley (1999). Strange Fascination - David Bowie: The Definitive Story: pp.320-321

Regarding its lyrics and subject matter, Bowie himself has claimed that "Blackout did indeed refer to power cuts". However NME's Roy Carr and Charles Shaar Murray considered it to have "overtones of Bowie's personal blackout in Berlin (where he collapsed and was rushed to hospital)", Roy Carr & Charles Shaar Murray (1981). Bowie: An Illustrated Record: p.92 noting the line "Get me to the doctor’s" and an atmosphere of "disorientation, fragmentation, panic". Nicholas Pegg surmised that, by the same token, the line "Someone's back in town, the chips are down" may have referred to his wife Angie, who had just arrived in Berlin around the same time.

"Blackout" is the ninth song from Muse's third album, Absolution. It was first played at Amsterdam Melkweg 2003. According to Matthew Bellamy, the band's lead singer and guitarist, the song originally had a plethora of backup voices and overripe strings, to the point of being ridiculous. Matt, who composed the strings part of the song, and the producer agreed to cut it back a little.

There is only one known remix of the song, called "Blackout [The Awakening Mix]," by Mark Newby. It features an additional percussion track, from Blink-182's "I Miss You."

When played live at their gig at Wembley Stadium in June 2007, the performance was accompanied by two acrobats suspended by Helium-filled balloons (named "heliospheres" on the setlist) floating out above the standing audience, moving as the song was played.