The Arctic ( /ˈɑrktɪk/ or /ˈɑrtɪk/) is a polar region located at the northern-most part of the Earth. The Arctic consists of the Arctic Ocean and parts of Canada, Russia, Greenland, Norway, United States, Sweden, Finland, and Iceland. The Arctic region consists of a vast, ice-covered ocean, surrounded by treeless permafrost. The area can be defined as north of the Arctic Circle (66° 33'N), the approximate limit of the midnight sun and the polar night. Alternatively, it can be defined as the region where the average temperature for the warmest month (July) is below 10 °C (50 °F); the northernmost tree line roughly follows the isotherm at the boundary of this region.

Socially and politically, the Arctic region includes the northern territories of the eight Arctic states, although by natural science definitions much of this territory is considered subarctic. The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. In recent years the extent of the sea ice has declined. Life in the Arctic includes organisms living in the ice,zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies.

Jeremy Charles Robert Clarkson (born 11 April 1960) is an English broadcaster, journalist and writer who specialises in motoring. He is best known for his role on the BBC TV show Top Gear along with co-presenters Richard Hammond and James May. He also writes weekly columns for The Sunday Times and The Sun.

From a career as a local journalist in Northern England, Clarkson rose to public prominence as a presenter of the original format of Top Gear in 1988. Since the mid-1990s, Clarkson has become a recognised public personality, regularly appearing on British television presenting his own shows and appearing as a guest on other shows. As well as motoring, Clarkson has produced programmes and books on subjects such as history and engineering. From 1998 to 2000 he also hosted his own chat show, Clarkson.

His opinionated but humorous tongue-in-cheek writing and presenting style has often generated much public reaction to his viewpoints. His actions both privately and as a Top Gear presenter have also sometimes resulted in criticism from the media, politicians, pressure groups and the public.

Malcolm John "Mac" Rebennack, Jr. (born November 21, 1940), better known by the stage name Dr. John (also Dr. John Creaux, or Dr. John the Night Tripper), is an American singer-songwriter, pianist and guitarist, whose music combines blues, pop, jazz as well as zydeco, boogie woogie and rock and roll.

Active as a session musician since the late 1950s, he came to wider prominence in the early 1970s with a wildly theatrical stage show inspired by medicine shows, Mardi Gras costumes and voodoo ceremonies. Rebennack has recorded over 20 albums and in 1973 scored a top-20 hit with the jaunty funk-flavored "Right Place Wrong Time", still perhaps his best-known song.

The winner of five Grammy Awards, Rebennack was inducted into the Rock and Roll Hall of Fame by singer John Legend on Monday, March 14, 2011.

Born in New Orleans, Louisiana, United States, Dr. John's Acadian ancestry traces back to the imperial territory of Alsace-Lorraine. He claims that his lineage took root in New Orleans sometime in the early 1800s. Growing up in the Third Ward, Dr. John found early musical inspiration in the minstrel tunes sung by his grandfather and a number of aunts, uncles, and cousins who played piano. He did not take music lessons before his teens, he only endured a short stint in choir before getting kicked out. His father, the owner of an appliance store and record shop, exposed him as a young boy to prominent jazz musicians like King Oliver and Louis Armstrong. Throughout his adolescence his father's connections enabled him access to the recording rooms of burgeoning rock artists such as Little Richard and Guitar Slim. From these exposures he advanced into clubs and onto the stage with varying local artists, most notably, Professor Longhair.

John Cooper Clarke (born 25 January 1949) is an English performance poet who first became famous during the punk rock era of the late 1970s when he became known as a "punk poet". He released several albums in the late 1970s and early 1980s, and continues to perform regularly.

His recorded output has mainly centred around musical backing from The Invisible Girls, which featured Martin Hannett, Pete Shelley, Bill Nelson, Paul Burgess and Steve Hopkins.

Clarke was born in Salford, Lancashire in 1949. His first job was a laboratory technician at the University of Salford. He began his performance career in Manchester folk clubs, where he began working with Rick Goldstraw and his band The Ferrets. His first releases were on the independent label Rabid, starting with the EP Innocents in October 1977. He toured with Bill Nelson's band Be-Bop Deluxe in 1978 and was signed by Epic Records, who issued the Nelson-produced debut album Disguise In Love in 1978. In 1979 he had his only UK top 40 hit with "Gimmix! (Play Loud)". Clarke toured with Linton Kwesi Johnson, and has performed on the same bill as bands such as Sex Pistols, The Fall, Joy Division, Buzzcocks, Siouxsie and the Banshees, Elvis Costello, Rockpile, and New Order (including at their May 1984 Music for Miners benefit concert at London's Royal Festival Hall). His set is characterised by lively, rapid-fire renditions of his poems, usually performed a cappella. Often referred to as "the bard of Salford", he usually refers to himself on stage as "Johnny Clarke, the name behind the hairstyle".

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.