Mariah Carey

Mariah Carey (born March 27, 1969 or 1970) is an American singer, songwriter, record producer, and actress. She rose to prominence after the release of the first single taken from her eponymous debut album in 1990, "Vision of Love". More than two decades later, Rolling Stone defined the song as an influence on "virtually every other female R&B singer since the nineties". Mariah Carey produced four chart-topping singles in the US and began what would become a string of commercially successful albums which solidified the singer as Columbia's highest selling act. Carey and Boyz II Men spent a record sixteen weeks atop the Billboard Hot 100 with "One Sweet Day", which remains the longest-running number-one song in US chart history. Following a contemptuous divorce from Sony Music head Tommy Mottola, Carey adopted a new image and traversed towards R&B with the release of Butterfly (1997). In 1998, she was honored as the world's best-selling recording artist of the 1990s at the World Music Awards and subsequently named the best-selling female artist of the millennium in 2000.

Rod Stewart

Roderick David "Rod" Stewart, CBE (born 10 January 1945) is a British rock singer-songwriter. Born and raised in London, he is of Scottish and English ancestry. Stewart is one of the best-selling music artists of all time, having sold over 100 million records worldwide.

He has had six consecutive number one albums in the UK, and his tally of 62 UK hit singles includes 31 that reached the top 10, six of which gained the number one position. He has had 16 top ten singles in the US, with four reaching number one on the Billboard Hot 100. In 2007, he received a CBE at Buckingham Palace for services to music.

With his distinctive raspy singing voice, Stewart came to prominence in the late 1960s and early 1970s with The Jeff Beck Group and then with Faces, though his music career had begun in 1962 when he took up busking with a harmonica. In October 1963 he joined the Dimensions as a harmonica player and part-time vocalist, then in 1964 he joined Long John Baldry and the All Stars. Later, in August 1964, he also signed a solo contract, releasing his first solo single, "Good Morning Little Schoolgirl", in October of the same year. He maintained a solo career alongside a group career, releasing his debut solo album An Old Raincoat Won't Ever Let You Down (US: The Rod Stewart Album), in 1969. His early albums were a fusion of rock, folk music, soul music and R&B. His aggressive blues work with The Jeff Beck Group and the Faces influenced heavy metal genres. From the late 1970s through the 1990s, Stewart's music often took on a new wave or soft rock/middle-of-the-road quality, and in the early 2000s he released a series of successful albums interpreting the Great American Songbook.

Louis Armstrong

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Louis Armstrong (August 4, 1901 – July 6, 1971), nicknamed Satchmo or Pops, was an American jazz trumpeter, composer and singer who became one of the pivotal and most influential figures in jazz music. His career spanned from the 1920s to the 1960s, covering many different eras of jazz.

Coming to prominence in the 1920s as an "inventive" trumpet and cornet player, Armstrong was a foundational influence in jazz, shifting the focus of the music from collective improvisation to solo performance. With his instantly recognizable gravelly voice, Armstrong was also an influential singer, demonstrating great dexterity as an improviser, bending the lyrics and melody of a song for expressive purposes. He was also skilled at scat singing.

Renowned for his charismatic stage presence and voice almost as much as for his trumpet-playing, Armstrong's influence extends well beyond jazz music, and by the end of his career in the 1960s, he was widely regarded as a profound influence on popular music in general. Armstrong was one of the first truly popular African-American entertainers to "cross over", whose skin color was secondary to his music in an America that was extremely racially divided. He rarely publicly politicized his race, often to the dismay of fellow African-Americans, but took a well-publicized stand for desegregation during the Little Rock Crisis. His artistry and personality allowed him socially acceptable access to the upper echelons of American society which were highly restricted for black men of his era.