Black is the color of objects that do not emit or reflect light in any part of the visible spectrum; they absorb all such frequencies of light. Although black is sometimes described as an "achromatic", or hueless, color, in practice it can be considered a color, as in expressions like "black cat" or "black paint".

The word black comes from Old English blæc ("black, dark", also, "ink"), from Proto-Germanic *blakkaz ("burned"), from Proto-Indo-European *bhleg- ("to burn, gleam, shine, flash"), from base *bhel- ("to shine"), related to Old Saxon blak ("ink"), Old High German blah ("black"), Old Norse blakkr ("dark"), Dutch blaken ("to burn"), and Swedish bläck ("ink"). More distant cognates include Latin flagrare ("to blaze, glow, burn"), and Ancient Greek phlegein ("to burn, scorch"). Black supplanted the wonted Old English word sweart ("black, dark"), which survives as swart, swarth, and swarthy (compare German schwarz and Dutch zwart, "black").

Black can be defined as the visual impression experienced when no visible light reaches the eye. (This makes a contrast with whiteness, the impression of any combination of colors of light that equally stimulates all three types of color-sensitive visual receptors.)

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Rebecca Renee Black (born June 21, 1997) is an American pop singer and dancer who gained extensive media attention with the 2011 single "Friday". Her mother paid $4,000 to have the single and an accompanying music video put out as a vanity release through the record label ARK Music Factory. The song was co-written and produced by Clarence Jey and Patrice Wilson of Ark Music Factory. After the video went viral on YouTube and other social media sites, "Friday" was derided by many music critics and viewers, who dubbed it "the worst song ever." The music video received around 167 million views, causing Black to gain international attention as a "viral star", before being removed from the site on June 16. Black re-uploaded it in her own channel three months later.

Rebecca Black was born on June 21, 1997, in Irvine, California. She is the daughter of John Jeffery Black and Georgina Marquez Kelly, both veterinarians. She is of Mexican, Spanish, Italian, English, and Polish descent. An honor student, Black studied dance, auditioned for school shows, attended music summer camps, and began singing publicly in 2008 after joining the patriotic group Celebration USA.^{[citation needed]} In 2011 Black left public school in favor of homeschooling, both in response to constant verbal bullying at school and in order to focus more of her time on her career. Black later said that her main reason for the move to homeschooling was more for career reasons rather than the bullying.