Guy Sebastian

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Guy Theodore Sebastian (born 26 October 1981) is an Australian-Malaysian singer-songwriter. He was the first winner of Australian Idol in 2003, and is a judge on Australia's The X Factor. He represented Australia at the 2015 Eurovision Song Contest, finishing in 5th place.

Sebastian has released eight top ten albums, including two number ones. The first seven all gained either platinum or multi-platinum certification. He has also achieved twenty top twenty singles, with twelve reaching the top ten, including six number ones. He is the only Australian male artist in Australian chart history to achieve six number one singles, and places third overall for all Australian acts. Eight of his singles have been certified multi-platinum, including the 9× platinum "Battle Scars". His debut single "Angels Brought Me Here" was the highest selling song in Australia last decade. With 51 platinum and seven gold certifications and combined album and single sales of over 3.8 million in Australia, he has the highest certifications and sales of any Australian Idol contestant.

Kid Cudi

Scott Ramon Seguro Mescudi (born January 30, 1984), better known by his stage name Kid Cudi (/ˈkɪd ˈkʌdi/ KID KUD-ee, often stylized KiD CuDi), is an American recording artist and actor from Cleveland, Ohio. Cudi first gained major recognition following the release of his first official full-length project, a mixtape titled A Kid Named Cudi (2008). The mixtape caught the attention of American rapper-producer Kanye West, who subsequently signed Cudi to his GOOD Music label imprint in late 2008. Cudi has since gone on to launch his own record label imprints, the now-dissolved Dream On and current independent label, Wicked Awesome Records. Initially a rapper, Cudi has since added singer, songwriter, record producer, guitarist, music video director and film composer, to his repertoire.

As of 2015, Cudi has released five studio albums as a solo artist. In 2008, his debut single "Day 'n' Nite", led him to prominence, reaching the top five of the Billboard charts. Cudi's debut album Man on the Moon: The End of Day (2009) was later certified gold by the Recording Industry Association of America (RIAA). In 2010, he released Man on the Moon II: The Legend of Mr. Rager, which was preceded by "Erase Me" and "Mr. Rager". Later in 2010, Cudi formed a rock band, now known as WZRD, with his long-time collaborator Dot da Genius, releasing one eponymous debut album, in early 2012. The album debuted at number one on the Top Rock Albums chart. In April 2013, Cudi released Indicud, which became his highest-charting album on multiple charts. In February 2014, Cudi unexpectedly released his fourth album, Satellite Flight: The Journey to Mother Moon, exclusively to digital retailers with no promotion.

Kanye West

Kanye Omari West (/ˈkɑːnjeɪ/; born June 8, 1977) is an American recording artist, record producer, fashion designer and entrepreneur. He is the founder of the record label GOOD Music and creative content company DONDA. West is one of the most acclaimed musicians of the 21st century. He has attracted both praise and criticism for his work and his controversial, outspoken public persona.

Raised in Chicago, West first became known as a producer for Roc-A-Fella Records in the early 2000s, producing hit singles for musical artists such as Jay-Z and Alicia Keys, before pursing a solo career as a rapper. In 2004, he released his debut album The College Dropout, to widespread commercial and critical success, and founded record label and management company GOOD Music. He went on to explore a variety of different musical styles on subsequent albums that included the baroque-inspired Late Registration (2005), the electronic-tinged Graduation (2007), and the starkly polarizing 808s & Heartbreak (2008). In 2010, he released his critically acclaimed fifth album My Beautiful Dark Twisted Fantasy. He collaborated with Jay-Z on Watch the Throne (2011), and released his sixth album, Yeezus, to further critical praise in 2013. Following a series of recording delays and work on non-musical projects, West's seventh album, The Life of Pablo, was released in 2016.

Justin Bieber

Justin Drew Bieber (/ˈbiːbər/; born March 1, 1994) is a Canadian singer, songwriter, and record producer. Bieber released his debut EP, My World, in late 2009. It was certified platinum in the U.S. He became the first artist to have seven songs from a debut record chart on the Billboard Hot 100. Bieber released his first full-length studio album, My World 2.0, in 2010. It debuted at or near number one in several countries and was certified triple platinum in the U.S. It was preceded by his most successful single to date, "Baby".

Following his debut album, he had his first headlining tour, the My World Tour, released the remix albums My Worlds Acoustic and Never Say Never – The Remixes -- and the 3D biopic-concert film Justin Bieber: Never Say Never. He released his second studio album, Under the Mistletoe, in November 2011, when it debuted at number one on the Billboard 200. Bieber released his third studio album, Believe, in 2012. His fourth studio album Purpose was released in November 2015. His U.S. album and singles sales total 44.7 million.