Dortmund ([ˈdɔʁtmʊnt] ( listen); Low German: Düörpm; Latin: Tremonia) is a city in Germany. It is located in the Bundesland of North Rhine-Westphalia. Its population of 580,444 (in December 2010) makes it the 8th largest city in Germany. It is a part of the Ruhr Area, an urban area with some 5.2 million (2009) inhabitants which is the largest urban agglomeration in Germany. It is also a part of the larger Rhine-Ruhr metropolitan region of more than 12 million people.

The river Ruhr flows south of the city, and the small river Emscher flows through the municipal area. The Dortmund-Ems Canal also terminates in the Dortmund Port, which is the largest European canal port, and links Dortmund to the North Sea.

Dortmund is known as Westphalia's "green metropolis". Nearly half the municipal territory consists of waterways, woodland, agriculture and green spaces with spacious parks such as Westfalenpark and the Rombergpark. This contrasts with nearly a hundred years of extensive coal mining and steel milling within the city limits.

Germany (ⁱ/ˈdʒɜrməni/), officially the Federal Republic of Germany (German: Bundesrepublik Deutschland, pronounced [ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant] ( listen)), is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km² and has a largely temperate seasonal climate. With 81.8 million inhabitants, it is the most populous member state and the largest economy in the European Union. It is one of the major political powers of the European continent and a technological leader in many fields.

A region named Germania, inhabited by several Germanic peoples, was documented before AD 100. During the Migration Period, the Germanic tribes expanded southward, and established successor kingdoms throughout much of Europe. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation while southern and western parts remained dominated by Roman Catholic denominations, with the two factions clashing in the Thirty Years' War, marking the beginning of the Catholic–Protestant divide that has characterized German society ever since. Occupied during the Napoleonic Wars, the rise of Pan-Germanism inside the German Confederation resulted in the unification of most of the German states into the German Empire in 1871 which was Prussian dominated. After the German Revolution of 1918–1919 and the subsequent military surrender in World War I, the Empire was replaced by the Weimar Republic in 1918, and partitioned in the Treaty of Versailles. Amidst the Great Depression, the Third Reich was proclaimed in 1933. The latter period was marked by Fascism and World War II. After 1945, Germany was divided by allied occupation, and evolved into two states, East Germany and West Germany. In 1990 Germany was reunified.

McKinley Morganfield (April 4, 1913 – April 30, 1983), known as Muddy Waters, was an American blues musician, generally considered the "father of modern Chicago blues". He was a major inspiration for the British blues explosion in the 1960s, and was ranked No. 17 in Rolling Stone magazine's list of the 100 Greatest Artists of All Time.

Although in his later years Muddy usually said that he was born in Rolling Fork, Mississippi, in 1915, he was actually born at Jug's Corner in neighboring Issaquena County, Mississippi, in 1913. Recent research has uncovered documentation showing that in the 1930s and 1940s he reported his birth year as 1913 on both his marriage license and musicians' union card. A 1955 interview in the Chicago Defender is the earliest claim of 1915 as his year of birth, which he continued to use in interviews from that point onward. The 1920 census lists him as five years old as of March 6, 1920, suggesting that his birth year may have been 1914. The Social Security Death Index, relying on the Social Security card application submitted after his move to Chicago in the mid 1940s, lists him as being born April 4, 1915. Muddy's gravestone lists his birth year as 1915.

Robert Nesta "Bob" Marley, OM (6 February 1945 – 11 May 1981) was a Jamaican singer-songwriter and musician. He was the rhythm guitarist and lead singer for the ska, rocksteady and reggae band Bob Marley & The Wailers (1963–1981). Marley remains the most widely known and revered performer of reggae music, and is credited with helping spread both Jamaican music and the Rastafari movement to a worldwide audience.

Marley's music was heavily influenced by the social issues of his homeland, and he is considered to have given voice to the specific political and cultural nexus of Jamaica. His best-known hits include "I Shot the Sheriff", "No Woman, No Cry", "Could You Be Loved", "Stir It Up", "Get Up Stand Up", "Jamming", "Redemption Song", "One Love" and, "Three Little Birds", as well as the posthumous releases "Buffalo Soldier" and "Iron Lion Zion". The compilation album Legend (1984), released three years after his death, is reggae's best-selling album, going ten times Platinum which is also known as one Diamond in the U.S., and selling 25 million copies worldwide.

Justin Drew Bieber ( /ˈbiːbər/ BEE-bər, born March 1, 1994) is a Canadian Pop/R&B singer-songwriter, musician, and actor. Bieber was discovered in 2008 by Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Braun arranged for him to meet with Usher in Atlanta, Georgia, and Bieber was soon signed to Raymond Braun Media Group (RBMG), a joint venture between Braun and Usher, and then to a recording contract with Island Records offered by L.A. Reid. Bieber's debut single, "One Time", was released in 2009 and peaked in the top twenty in Canada and charted in the top thirty in several international markets. His debut album, the seven-track EP My World, followed in November 2009, and was soon certified platinum in the United States. He became the first artist to have seven songs from a debut album chart on the Billboard Hot 100.