Isaac Lee Hayes, Jr. (August 20, 1942 – August 10, 2008) was an American songwriter, musician, singer, actor, and voice actor. Hayes was one of the creative influences behind the southern soul music label Stax Records, where he served both as an in-house songwriter and as a record producer, teaming with his partner David Porter during the mid-1960s. Hayes, Porter, Bill Withers, the Sherman Brothers, Steve Cropper, and John Fogerty were inducted into the Songwriters Hall of Fame in 2005 in recognition of writing scores of notable songs for themselves, the duo Sam & Dave, Carla Thomas, and others.

The hit song "Soul Man", written by Hayes and Porter and first performed by "Sam & Dave", has been recognized as one of the most influential songs of the past 50 years by the Grammy Hall of Fame. It was also honored by The Rock and Roll Hall of Fame, by Rolling Stone magazine, and by the RIAA as one of the Songs of the Century.

During the late 1960s, Isaac Hayes also began recording music and he had several successful soul albums such as Hot Buttered Soul (1969) and Black Moses (1971). In addition to his work in popular music, he worked as a composer of musical scores for motion pictures.

James Joseph Brown (May 3, 1933 – December 25, 2006) was an American singer, songwriter, musician, and recording artist. He is the originator of funk music and is a major figure of 20th century popular music and dance.

In a career that spanned decades, Brown profoundly influenced the development of many different musical genres. Brown moved on a continuum of blues and gospel-based forms and styles to a profoundly "Africanized" approach to music making. Brown performed in concerts, first making his rounds across the Chitlin' Circuit, and then across the country and later around the world, along with appearing in shows on television and in movies. Although he contributed much to the music world through his hitmaking, Brown holds the record as the artist who charted the most singles on the Billboard Hot 100 without ever hitting number one on that chart.

For many years, Brown's touring show was one of the most extravagant productions in American popular music. At the time of Brown's death, his band included three guitarists, two bass guitar players, two drummers, three horns and a percussionist. The bands that he maintained during the late 1960s and 1970s were of comparable size, and the bands also included a three-piece amplified string section that played during ballads. Brown employed between 40 and 50 people for the James Brown Revue, and members of the revue traveled with him in a bus to cities and towns all over the country, performing upwards of 330 shows a year with almost all of the shows as one-nighters. In 1986, he was inducted into the Rock and Roll Hall of Fame and in 1990 into the Songwriters Hall of Fame.

Stefani Joanne Angelina Germanotta (/ˈstɛfəniː dʒʌrməˈnɑːtə/ STE-fə-nee jurr-mə-NAH-tə; born March 28, 1986), known by her stage name Lady Gaga, is an American singer and songwriter. Born and raised in New York City, she primarily studied at the Convent of the Sacred Heart and briefly attended New York University's Tisch School of the Arts before withdrawing to focus on her musical career. She began performing in the rock music scene of Manhattan's Lower East Side, and was signed with Streamline Records by the end of 2007. During her employment as a songwriter for the record company, her vocal abilities captured the attention of recording artist Akon, who signed her to his label Kon Live Distribution.

Lady Gaga came to prominence as a recording artist following the release of her debut album The Fame (2008), which was a critical and commercial success that topped charts around the world and included the international number-one singles "Just Dance" and "Poker Face". After embarking on the The Fame Ball Tour, she followed the album with The Fame Monster (2009), which spawned the worldwide hit singles "Bad Romance", "Telephone" and "Alejandro". The album's success allowed her to embark on the eighteen-month long Monster Ball Tour, which later became one of the highest-grossing concert tours of all time. Her most recent album Born This Way (2011) topped the charts of most major markets and generated more international chart-topping singles, including "Born This Way", "Judas" and "The Edge of Glory". Besides her musical career, she involves herself with humanitarian causes and LGBT activism.