Army Group Centre (German: Heeresgruppe Mitte) was the name of two distinct German strategic army groups that fought on the Eastern Front in World War II. The first Army Group Centre was created on 22 June 1941, as one of three German Army (Wehrmacht Heer) formations assigned to the invasion of the Soviet Union (Operation Barbarossa). On 25 January 1945, after it was encircled in the Königsberg pocket, Army Group Centre was renamed Army Group North (Heeresgruppe Nord), and Army Group A (Heeresgruppe A) became Army Group Centre. The latter formation retained its name until the end of the war in Europe.

Commander in chief on formation, June 1941 Fedor von Bock

June 1941

On 22 June 1941, Nazi Germany and its Axis allies launched their surprise offensive into Soviet Union. Their armies, totaling over three million men, were to advance in three geographical directions. The Army Group Centre's initial strategic goal was to defeat the Soviet armies in Belarus, including occupation of Smolensk. To accomplish this, the Army Group planned for a rapid advance using Blitzkrieg operational methods for which purpose it commanded two Panzer Groups rather than one. A quick and decisive victory over the Soviet Union was expected by mid-November. The Army Group's other operational missions were to support the Army Groups to its northern and southern flanks, the Army Group boundary for the later being the Pripyat River.

An army group is a military organization consisting of several field armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organization handled by a single commander — usually a full General or Field Marshal — and it generally includes between 400,000 and 1,000,000 soldiers.

In the Polish Armed Forces and former Soviet Red Army an army group was known as a Front. The equivalent of an army group in the Imperial Japanese Army (IJA) was a General Army (Sō-gun (総軍^?)).

Army groups may be multi-national formations. For example, during World War II, the Southern Group of Armies (also known as the U.S. 6th Army Group) comprised the U.S. Seventh Army and the French First Army; the 21st Army Group comprised the British Second Army, the Canadian First Army and the US Ninth Army.

In U.S. Army usage, the number of an army group is expressed in Arabic numerals (e.g., "12th Army Group"), while the number of an army is spelled out (e.g., "Third Army").

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American recording artist, entertainer, and businessman. Often referred to as the King of Pop, or by his initials MJ, Jackson is recognized as the most successful entertainer of all time by Guinness World Records. His contribution to music, dance, and fashion, along with a much-publicized personal life, made him a global figure in popular culture for over four decades. The seventh child of the Jackson family, he debuted on the professional music scene along with his brothers as a member of The Jackson 5 in 1964, and began his solo career in 1971.

In the early 1980s, Jackson became a dominant figure in popular music. The music videos for his songs, including those of "Beat It", "Billie Jean", and "Thriller", were credited with transforming the medium into an art form and a promotional tool, and the popularity of these videos helped to bring the relatively new television channel MTV to fame. Videos such as "Black or White" and "Scream" made him a staple on MTV in the 1990s. Through stage performances and music videos, Jackson popularized a number of complicated dance techniques, such as the robot and the moonwalk, to which he gave the name. His distinctive musical sound and vocal style influenced numerous hip hop, post-disco, contemporary R&B, pop and rock artists.