A mule is the offspring of a male donkey and a female horse. Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids between these two species, a mule is easier to obtain than a hinny (the offspring of a male horse and a female donkey). While there is no known instance of a male mule siring offspring, female mules have on very rare occasion given birth to viable offspring. The size of a mule and work to which it is put depends largely on the breeding of the mule's dam. Mules can be lightweight, medium weight, or even, when produced from draught horse mares, of moderately heavy weight.

An aficionado of the mule claims that they are "more patient, sure-footed, hardy and long-lived than horses, and they are considered less obstinate, faster, and more intelligent than donkeys."

A female mule that has estrus cycles and thus, in theory, could carry a fetus, is called a "molly" or "Molly mule," though the term is sometimes used to refer to female mules in general. Pregnancy is rare, but can occasionally occur naturally as well as through embryo transfer. One of several terms for a gelded mule is a "John mule."

Andy Samuel Griffith (born June 1, 1926) is an American actor, director, producer, Grammy Award-winning Southern-gospel singer, and writer. He gained prominence in the starring role in director Elia Kazan's epic film, A Face in the Crowd (1957) before he became better known for his television roles, playing the lead characters in the 1960–68 situation comedy, The Andy Griffith Show, and in the 1986–95 legal drama, Matlock. Griffith was awarded the Presidential Medal of Freedom by US President George W. Bush on November 9, 2005.

Griffith was born in Mount Airy, North Carolina, the only child of Geneva (née Nunn) and Carl Lee Griffith. At a very young age, Griffith had to live with relatives until his parents could afford to get a home of their own. Without a crib or a bed, he slept in drawers for a few months. In 1929, when Griffith was three years old, his father took a job working as a carpenter and was finally able to purchase a home in Mount Airy's "blue-collar" southside.

Like his mother, Griffith grew up listening to music. His father instilled a sense of humor from old family stories. By the time he entered school he was well aware that he was from what many considered the "wrong side of the tracks". He was a shy student, but once he found a way to make his peers laugh, he began to come out of his shell and come into his own.

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.

Etta James (born Jamesetta Hawkins; January 25, 1938 – January 20, 2012) was an American singer. Her style spanned a variety of music genres including blues, rhythm and blues, rock and roll, soul, gospel and jazz. Starting her career in the mid-1950s, she gained fame with hits such as "Dance With Me, Henry", "At Last", "Tell Mama", and "I'd Rather Go Blind" for which she wrote the lyrics. She faced a number of personal problems, including drug addiction, before making a musical resurgence in the late 1980s with the album The Seven Year Itch.

James is regarded as having bridged the gap between rhythm and blues and rock and roll, and is the winner of six Grammys and 17 Blues Music Awards. She was inducted into the Rock & Roll Hall of Fame in 1993, the Blues Hall of Fame in 2001, and the Grammy Hall of Fame in both 1999 and 2008.Rolling Stone ranked James number 22 on their list of the 100 Greatest Singers of All Time and number 62 on the list of the 100 Greatest Artists.

Jamesetta Hawkins was born on January 25, 1938, in Los Angeles, California, to Dorothy Hawkins, who was only 14 at the time. Her father has never been identified. James speculated that her father was the pool player, Rudolf "Minnesota Fats" Wanderone, and met him briefly in 1987. Due to her mother being often absent from their Watts apartment, conducting relationships with various men, James lived with a series of foster parents, most notably "Sarge" and "Mama" Lu. James referred to her mother as "the Mystery Lady".

William John Evans, known as Bill Evans (August 16, 1929–September 15, 1980) was an American jazz pianist. His use of impressionist harmony, inventive interpretation of traditional jazz repertoire, and trademark rhythmically independent, "singing" melodic lines influenced a generation of pianists. He is considered by some to be the most influential post-World War II jazz pianist. Evans had a distinct playing posture in which his neck would often be stooped very low, and his face parallel to the piano.

Evans is an inductee of the Down Beat Jazz Hall of Fame.

Bill Evans was born in Plainfield, New Jersey, United States, to a mother of Rusyn ancestry and a father of Welsh descent. He received his first musical training at his mother's church. Evans' mother was an amateur pianist with an interest in modern classical composers, and Evans began classical piano lessons at age six. He also became a proficient flautist by age 13 and could play the violin.

At age 12, Evans filled in for his older brother Harry in Buddy Valentino's band. At this age he was able to interpret classical music, but he couldn't improvise. In the beginning, he played exactly what was written in the sheet, but soon started trying to improvise, while learning about harmonies in the songs and how to alter them. Meanwhile, he was playing dance music (and jazz) at home, in a recording studio he built in his family's basement.. In the late 1940s, Evans played boogie woogie in various New Jersey clubs. He attended Southeastern Louisiana University on a music scholarship, and in 1950 performed Beethoven's Third Piano Concerto on his senior recital there, graduating with a degree in piano performance and teaching. He was also among the founding members of SLU's Delta Omega Chapter of Phi Mu Alpha Sinfonia, and played quarterback for the fraternity's football team, helping them win the school's 1949 intramural tournament.