Hamburg ( /ˈhæmbɜrɡ/; German pronunciation: [ˈhambʊɐ̯k], local pronunciation [ˈhambʊɪç]; Low German/Low Saxon: Hamborg [ˈhaˑmbɔːx]), officially Free and Hanseatic City of Hamburg, is the second-largest city in Germany, the thirteenth largest German state, and the sixth-largest city in the European Union. The city is home to over 1.8 million people, while the Hamburg Metropolitan Region (including parts of the neighbouring Federal States of Lower Saxony and Schleswig-Holstein) has more than 4.3 million inhabitants. Situated on the river Elbe, the port of Hamburg is the second largest port in Europe (after the Port of Rotterdam) and 11th-largest worldwide.

Hamburg's official name, Free and Hanseatic City of Hamburg (German: Freie und Hansestadt Hamburg), reflects Hamburg's history as a member of the medieval Hanseatic League, as a free imperial city of the Holy Roman Empire, and that Hamburg is a city-state and one of the sixteen States of Germany.

Hamburg is a major transport hub in Northern Germany and is one of the most affluent cities in Europe.  It has become a media and industrial centre, with plants and facilities belonging to Airbus, Blohm + Voss and Aurubis. The radio and television broadcaster Norddeutscher Rundfunk and publishers such as Gruner + Jahr and Spiegel-Verlag are pillars of the important media industry in Hamburg. In total, there are more than 120,000 enterprises.

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.

Fun (often stylized as fun.) is an American alternative rock band based in New York City that was formed by Nate Ruess, formerly of The Format. After the 2008 breakup of The Format, Ruess formed Fun with Andrew Dost and Jack Antonoff of Anathallo and Steel Train respectively. Fun has released two albums: their debut Aim and Ignite in 2009 and their latest Some Nights in February 2012.

The band is best known for its hit single "We Are Young" featuring Janelle Monáe. "We Are Young" reached number one on the U.S. Billboard Hot 100 and Digital Songs charts, becoming the first alternative song to top the Billboard Hot 100 chart since Coldplay's "Viva la Vida" in 2008. It also peaked at number one on the UK Singles Chart.

The Format split in February 2008. Immediately afterward Nate Ruess asked Andrew Dost and Jack Antonoff to join his new project. Dost had toured with The Format and provided various instrumentation. Ruess met Antonoff after The Format toured with Steel Train. The three began working together in New Jersey within a week. Ruess sang melodies while the other two provided music for them. The first demo song the band recorded was "Benson Hedges," which was made available for free in Spin's September 20, 2008 article on the band. Fun approached Steven McDonald, who produced The Format's album Dog Problems with Ruess, to produce their debut album. McDonald was enthusiastic about the project and stated, "I can’t believe what we’re working on here. This crushes anything I’ve ever done."