The sky, also known as the celestial dome, commonly refers to everything that lies a certain distance above the surface of Earth, including the atmosphere and the rest of outer space. In the field of astronomy, the sky is also called the celestial sphere. This is an imaginary dome where the sun, stars, planets, and the moon are seen to be traveling. The celestial sphere is divided into regions called constellations. Usually, the term sky is used from the point of view of the Earth's surface. However, the exact meaning of the term can vary; in some cases, the sky is defined as only the denser portions of the atmosphere, for example.

During daylight, the sky appears to be blue because air scatters blue sunlight more than it scatters red. At night, the sky appears to be a mostly dark surface or region scattered with stars. During the day, the Sun can be seen in the sky, unless obscured by clouds. In the night sky (and to some extent during the day) the moon, planets and stars are visible in the sky. Some of the natural phenomena seen in the sky are clouds, rainbows, and aurorae. Lightning and precipitation can also be seen in the sky during storms. Birds, insects, aircraft, and kites are often considered to fly in the sky. As a result of human activities, smog during the day and light pollution during the night are often seen above large cities.

Matan "Mat Zo" Zohar (born April, 1990) is a British trance music and progressive house music producer, composer and DJ.

The son of successful artist Israel Zohar, and half-brother of Israeli singer Alma Zohar, Matan Zohar was born in London, England in 1990. He was raised by his mother who was a professional violinist, who possessed staunch musical ethos and nurtured Matan's early love of--and prodigious inclination toward--music. From age one to eleven, Zohar and his family lived in the city of Cleveland, Ohio in the United States. It was there at age 8 where his father presented young Zohar with a guitar as a gift. He returned at age 11 to London and continued pursuing his musical interests as a drummer and bassist as a member of a jazz and rock band respectively. However, Zohar became more interested in musical acts such as Daft Punk and the Chemical Brothers, and his musical inclinations shifted to those of electronic dance music and DJing. After 3 years living and producing music in London, his recording began to gain attention and play time by other disc jockeys such as DJ Tarkan, Perry O'neil, Swedish Egil, DJ R-Man, Jav D, Micah, Airwave, Andy Moor and Markus Schulz In the 2009 publication of DJ Magazine's top 100 poll he was described by musical acts Above & Beyond, Lange and Daniel Kandi as a promising producer. In the 2010 publication, Mat Zo was a new entry at #66.

Sean Paul Ryan Francis Henriques (born January 9, 1973), who performs under stage name Sean Paul, is a Jamaican dancehall and reggae artist.

Sean Paul was born in Kingston and spent his early years in Upper Andrew Parish, a few miles north of Kingston. His parents, Garth and Frances, were both talented athletes, and his mother is a well-known painter. His paternal grandfather was a Sephardic Jew whose family emigrated from Portugal, and his paternal grandmother was Afro-Caribbean; his mother is of English and Chinese Jamaican descent. Sean Paul was raised as a Catholic. Many members of his family are swimmers. His grandfather was on the first Jamaican men's national water polo team. His father also played water polo for the team in the 1960s, and competed in long-distance swimming, while Sean Paul's mother was a backstroke swimmer. Sean Paul played for the national water polo team from the age of thirteen to twenty-one, when he gave up the sport in order to launch his musical career. He attended the Wolmers High School for Boys, Belair School, Hillel Academy High School, and the College of Arts, Science, and Technology, now known as the University of Technology, where he was trained in commerce with a view to pursuing an occupation in hotel management.

David Michael Letterman (born April 12, 1947) is an American television host and comedian. He hosts the late night television talk show, Late Show with David Letterman, broadcast on CBS. Letterman has been a fixture on late night television since the 1982 debut of Late Night with David Letterman on NBC. Letterman recently surpassed friend and mentor Johnny Carson for having the longest late-night hosting career in the United States of America.

Letterman is also a television and film producer. His company Worldwide Pants produces his show as well as its network follow-up The Late Late Show with Craig Ferguson. Worldwide Pants has also produced several prime-time comedies, the most successful of which was Everybody Loves Raymond, currently in syndication.

In 1996, David Letterman was ranked #45 on TV Guide's 50 Greatest TV Stars of All Time.

Letterman was born in Indianapolis, Indiana. His father, Harry Joseph Letterman (April 1915 – February 1973), was a florist of British descent; his mother Dorothy Letterman (née Hofert, now Dorothy Mengering), a Presbyterian church secretary of German descent, is an occasional figure on the show, usually at holidays and birthdays.

Sean Taro Ono Lennon (Japanese name Tarō Ono (小野 太郎, Ono Tarō^?); born October 9, 1975) is an American singer, songwriter, musician, guitarist and actor of English, Japanese and Irish descent. He is the only child of John Lennon and Yoko Ono and the younger half-brother of Julian Lennon. His godfather is Sir Elton John.

Sean Lennon was born in New York City on October 9, 1975, his father's 35th birthday. Julian Lennon is his half-brother and Kyoko Chan Cox is his half-sister. After Sean's birth, John became a house husband, doting on his young son until his murder in 1980. Sean attended kindergarten in Tokyo, and was also educated at the exclusive private boarding school Institut Le Rosey in Rolle, Switzerland, and earlier at New York's private Ethical Culture Fieldston School and Dalton School. He later attended Columbia University, though for only three semesters before dropping out to focus on his music career.

His parents did not force him into the life of a musician: they intentionally hid their musical lives from their son. His debut into the music world came at the age of five, reciting a story on his mother's 1981 album Season of Glass. From childhood into his teen years, Sean continued to collaborate with his mother, contributing vocals and receiving production credit on her solo albums It's Alright (I See Rainbows), Starpeace and Onobox. At 16 Sean co-wrote the song "All I Ever Wanted" with Lenny Kravitz for his 1991 album Mama Said. By 1995 Sean had formed the band IMA (with Sam Koppelman and Timo Ellis) to play alongside his mother on her album Rising. Sean also made appearances in film, featured in the cast of Michael Jackson's 1988 Moonwalker and portraying a teenager experiencing visions of various M. C. Escher paintings in Sony's 1990 promotional short-film Infinite Escher.