A martyr (Greek: μάρτυς, mártys, "witness"; stem μάρτυρ-, mártyr-) is somebody who suffers persecution and death for refusing to renounce, or accept, a belief or cause, usually religious.

In its original meaning, the word martyr, meaning witness, was used in the secular sphere as well as in the New Testament of the Bible. The process of bearing witness was not intended to lead to the death of the witness, although it is known from ancient writers (e.g. Josephus) and from the New Testament that witnesses often died for their testimonies.

During the early Christian centuries, the term acquired the extended meaning of a believer who is called to witness for their religious belief, and on account of this witness, endures suffering and/or death. The term, in this later sense, entered the English language as a loanword. The death of a martyr or the value attributed to it is called martyrdom.

The early Christians who first began to use the term martyr in its new sense saw Jesus as the first and greatest martyr, on account of his crucifixion. The early Christians appear to have seen Jesus as the archetypical martyr.

Felipe Andres Coronel (born February 19, 1978), better known by the stage name Immortal Technique, is an American rapper of Afro-Peruvian descent as well as an urban activist. He was born in Lima, Peru and raised in Harlem, New York. Most of his lyrics focus on controversial issues in global politics. The views expressed in his lyrics are largely commentary on issues such as class struggle, poverty, religion, government and institutional racism.

Immortal Technique has voiced a desire to retain control over his production, and has stated in his music that record companies, not artists themselves, profit the most from mass production and marketing of music. He claimed in an interview to have sold close to 200,000 copies of his three official releases.

Coronel is African-Peruvian and was born in 1978 in a military hospital in Lima. His family emigrated in 1980 to Harlem. During his teenage years he was arrested multiple times due in part to what he has said was "selfish and childish" behavior. He attended Hunter College High School on the Upper East Side of Manhattan. Shortly after enrolling in Pennsylvania State University, he was arrested and charged with assault-related offenses due to his involvement in an altercation between fellow students, the charges stemming from this incident led to him being incarcerated for a year. After being paroled, he took political science classes at Baruch College in New York City for two semesters at the behest of his father, who allowed Coronel to live with him on the condition that he go to school. Honing his rapping skills in jail, and unable to find decent wage-paying employment after his release, Coronel began selling his music on the streets of New York while battling with MCs whenever the opportunity arose. This, coupled with his victories in numerous freestyle rap competitions of the New York underground hip hop scene such as Rocksteady Anniversary, Braggin Rites and others, led to his reputation as a ferocious Battle MC.