Nef or NEF can refer to:

A baby mama (also baby-mama and baby-mother) is generally defined as a mother who is not married to her child's father, although the term is often used with other meanings as well.

Originally, the term was used by the fathers of children born out of wedlock to describe the mothers of their children, but the term is now in general use to describe any single mother. Since entering currency in U.S. tabloids, the terms baby mama and baby daddy have even begun to be applied to married and engaged celebrities.

The Oxford English Dictionary defines baby mama as "the mother of a man's child, who is not his wife or (in most cases) his current or exclusive partner".

Peter L. Patrick, a linguistics professor who studies Jamaican English, has said of the terms baby mother and baby father, "[they] definitely imply there is not a marriage—not even a common-law marriage, but rather that the child is an 'outside' child".

The term "baby-mother" in Jamaica is most often used to describe any pregnant woman or any woman with a young child. For example on a crowded bus you may be admonished to give the "baby-mother" a seat. However in this case no judgement is being made about her marital status and literally means "the mother of the child".

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.