Makhaira (from Greek μάχαιρα (mákhaira, plural mákhairai), also transliterated machaira or machaera; an Ancient Greek word, related to μάχη (mákhē) "a battle", μάχεσθαι (mákhesthai) "to fight", from PIE *magh-) is a term used by modern scholars to describe a type of ancient bladed weapon, generally a large knife with a curved cutting edge. Homer mentions the makhaira, but as a domestic knife of no great size. In period texts, μάχαιρα has a variety of meanings, and can refer to virtually any knife or sword (taking the meaning of today's Greek μαχαίρι), even a surgeon's scalpel, but in a martial context it frequently refers to a type of one-edged sword; a sword designed primarily to cut rather than thrust. Modern scholars distinguish the makhaira from the kopis (an ancient term of similar meaning) based on whether the blade is forward curved (kopis), or not (makhaira).

These weapons were of various sizes and shapes, being regional, and not exclusively Greek. Greek art shows the Lacedaemonian and Persian armies employing swords with a single cutting edge, but Persian records show that their primary infantry sword was two edged and straight, similar to the Greek xiphos (cf. acinaces).

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.