Spaghetti Western, also known as Italo-Western, is a nickname for a broad sub-genre of Western films that emerged in the mid-1960s in the wake of Sergio Leone's unique and much copied film-making style and international box-office success, so named by American critics because most were produced and directed by Italians. The term for these films in Italy is western all'italiana (Italian-Style Western); British critics tended to use the label Continental Western to describe these films, and the phrase 'Spaghetti Western' according to actor Aldo Sambrell was originally created by Italian journalist Alfonso Sancha as a derogatory name for this group of films, but has over time become accepted by fans of the films. The language in which the movies were originally released was Italian as well, but as most of the films featured multilingual casts and sound was invariably post-synched, most Westerns all'Italiana do not have an official dominant language.

As many of these films were shot in Spain they were also called paella westerns.

Ennio Morricone, Grand Officer OMRI, Italian pronunciation: [ˈɛnnjo morriˈkoːne], (born November 10, 1928) is an Italian composer and conductor, who has written music for more than 500 motion pictures and television series, in a career lasting over 50 years. His scores have been included in over 20 award-winning films as well as several symphonic and choral pieces. Morricone is most famous for his work in the Spaghetti Westerns directed by his friend Sergio Leone, including A Fistful of Dollars (1964), For a Few Dollars More (1965), The Good, the Bad and the Ugly (1966), and Once Upon a Time in the West (1968) but his career includes a wide range of composition genres making him one of the film world's most versatile artists. He is considered as one of the most influential film music composers of the 20th century.

Born in Rome, Italy, Morricone took up the trumpet as a child and attended the National Academy of Santa Cecilia to take lessons on the instrument at the age of nine. He formally entered a conservatory at the age of 12, enrolling in a four-year harmony programme. He received his trumpet diploma in 1946 and started working professionally, composing the music to "Il Mattino" ("The Morning"). Morricone soon gained popularity by writing his first background music for radio dramas and quickly moved into film.