The Beatles were an English rock band, formed in Liverpool in 1960, that comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr. They are regarded as the most influential band of all time and were integral to the development of 1960s counterculture and popular music's recognition as an art form. Rooted in skiffle, beat and 1950s rock 'n' roll, their sound incorporated elements of classical music and traditional pop in innovative ways; the band also explored music styles ranging from folk and Indian music to psychedelia and hard rock. As pioneers in recording, songwriting and artistic presentation, the Beatles revolutionised many aspects of the music industry and were often publicised as leaders of the era's youth and sociocultural movements.

Justin Drew Bieber is a Canadian singer. Bieber is recognized for his genre-melding musicianship and global influence in modern-day popular music. He was discovered by American record executive Scooter Braun and signed with RBMG Records in 2008, gaining recognition with the release of his debut seven-track EP My World (2009) and soon establishing himself as a teen idol.

Miley Ray Cyrus is an American singer, songwriter, and actress. Her music spans across varied styles and genres, including pop, country, rock, hip hop, R&B, and experimental music.

Mark Daniel Ronson (born 4 September 1975) is a British-American DJ, songwriter, record producer, and record executive. He is best known for his collaborations with artists such as Duran Duran, Amy Winehouse, Adele, Lady Gaga, Lily Allen, Robbie Williams, Miley Cyrus, Queens of the Stone Age, and Bruno Mars. He has received seven Grammy Awards, including Producer of the Year for Winehouse's album Back to Black and two for Record of the Year singles "Rehab" and "Uptown Funk". He received an Academy Award, a Golden Globe Award and a Grammy Award for co-writing the song "Shallow" (performed by Lady Gaga and Bradley Cooper) for the film A Star Is Born (2018).

Ronson was born in London and raised in New York City. His stepfather is Foreigner guitarist Mick Jones, which contributed to a childhood surrounded by music. While attending New York University, Ronson became a popular DJ in the hip-hop scene. His debut album Here Comes the Fuzz failed to have an effect on the charts. In 2006, he received acclaim for producing albums for Lily Allen, Christina Aguilera, and Amy Winehouse. In 2007, Ronson released his second album, Version. The album reached number two in the UK and included three top ten singles and earned him the Brit Award for British Male Solo Artist. He subsequently released his third studio album, Record Collection, peaking at number two in the UK.

Ludwig van Beethoven (baptised 17 December 1770 – 26 March 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank amongst the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era in classical music. His career has conventionally been divided into early, middle, and late periods. His early period, during which he forged his craft, is typically considered to have lasted until 1802. From 1802 to around 1812, his middle period showed an individual development from the styles of Joseph Haydn and Wolfgang Amadeus Mozart, and is sometimes characterized as heroic. During this time, he began to grow increasingly deaf. In his late period, from 1812 to 1827, he extended his innovations in musical form and expression.

Tyler Gregory Okonma, known professionally as Tyler, the Creator, is an American rapper, singer, and record producer. He is one of the founding members of the music collective Odd Future. Okonma has won two Grammy Awards, three BET Hip Hop Awards, a BRIT Award, and a MTV Video Music Award.

Ty Garrett Segall is an American multi-instrumentalist, singer-songwriter and record producer. He is best known for his solo career, during which he has released fourteen studio albums alongside various EPs, singles, and collaborative albums. Segall is also a member of the bands Fuzz, Broken Bat, the CIA, GØGGS, and Wasted Shirt. He is a former member of the Traditional Fools, Epsilons, Party Fowl, Sic Alps, and the Perverts.