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.

Donald Trump

Donald John Trump, Sr. (born June 14, 1946) is an American businessperson and media personality. He is the chairman and president of The Trump Organization and the founder of Trump Entertainment Resorts. Trump's career, branding efforts, personal life, wealth, and outspoken manner have made him famous throughout the country. Since 2015, he is also a candidate for the Republican nomination for President of the United States in the 2016 election.

Trump is a native of New York City and a son of Fred Trump, who inspired him to enter real estate development. After two years at Fordham University and while studying at Wharton School of the University of Pennsylvania, Trump worked for his father's firm, Elizabeth Trump & Son. Upon graduating in 1968 he joined the company, and in 1971 was given control, renaming the company "The Trump Organization". Since then he has built hotels, golf courses, and other properties, many of which bear his name. He is a major figure in the American business scene and has received prominent media exposure. The NBC reality show The Apprentice bolstered his fame, and his three marriages were extensively reported in tabloids.

Wiz Khalifa

Cameron Jibril Thomaz (born September 8, 1987), better known by his stage name Wiz Khalifa, is an American recording artist, songwriter and actor. He released his debut album, Show and Prove, in 2006, and signed to Warner Bros. Records in 2007. His Eurodance-influenced single, "Say Yeah", received urban radio airplay, charting on the Rhythmic Top 40 and Hot Rap Tracks charts in 2008.

Khalifa parted with Warner Bros. and released his second album, Deal or No Deal, in November 2009. He released the mixtape Kush and Orange Juice as a free download in April 2010; he then signed with Atlantic Records. He is also well known for his debut single for Atlantic, "Black and Yellow", which peaked at number one on the Billboard Hot 100. His debut album for the label, Rolling Papers, was released on March 29, 2011. He followed that album with O.N.I.F.C. on December 4, 2012, which was backed by the singles "Work Hard, Play Hard" and "Remember You". Wiz released his fourth album Blacc Hollywood on August 18, 2014, backed by the lead single We Dem Boyz. In March 2015, he released "See You Again" for the soundtrack of the film Furious 7 and the song peaked at number one on the Billboard Hot 100.

Taylor Swift

Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter. Raised in Wyomissing, Pennsylvania, she moved to Nashville, Tennessee, at the age of 14 to pursue a career in country music. She signed with the independent label Big Machine Records and became the youngest songwriter ever signed by the Sony/ATV Music publishing house. The release of Swift's eponymous debut album in 2006 marked the start of her career as a country music singer. Her third single, "Our Song", made her the youngest person to single-handedly write and perform a number-one song on the Hot Country Songs chart.

Swift's second album, Fearless, was released in 2008. Buoyed by the pop crossover success of the singles "Love Story" and "You Belong with Me", Fearless became the best-selling album of 2009 in the United States. The album won four Grammy Awards, making Swift the youngest ever Album of the Year winner. Swift's third and fourth albums, 2010's Speak Now and 2012's Red, both sold more than one million copies within the first week of their U.S release. Speak Now's "Mean" won two Grammy Awards, while Red's singles "We Are Never Ever Getting Back Together" and "I Knew You Were Trouble" were successful worldwide. Swift's fifth album, the pop-focused 1989, was released in 2014 and sold more copies in its opening week than any album in the previous 12 years, making Swift the first and only act to have three albums sell more than one million copies in the opening release week. Its singles "Shake It Off", "Blank Space", and "Bad Blood" reached number one on the Billboard Hot 100. The album would go on to win three awards at the 2016 Grammys including Album of the Year making Swift the first and thus far only female artist to receive the award twice.

Mark Ronson

Mark Daniel Ronson (born 4 September 1975) is an English musician, DJ, singer, songwriter, and record producer. Although his debut album Here Comes the Fuzz failed to make an impact on the charts, his second album Version reached number two in the UK and included three top 10 singles. This success won him a Brit Award for Best British Male Solo Artist in 2008. His third studio album, Record Collection, was released on 27 September 2010, peaking at number two in the UK.

In 2014, Ronson achieved his first UK and US number one single with the Grammy-nominated "Uptown Funk," which featured vocals from Bruno Mars. In 2015 it won Ronson the Brit Award for British Single of the Year. His fourth studio album, the Grammy-nominated Uptown Special, was released in January 2015, and became his first UK number one album. Ronson has also produced multi-platinum, Grammy-winning albums for Amy Winehouse and Adele.

Early life

Ronson was born at the Wellington Hospital, St John's Wood, London, the son of Laurence Ronson, a real-estate speculator and music manager, and Anne Dexter. His parents are both Ashkenazi Jews (their ancestors being Jewish immigrants from Austria, Russia, and Lithuania); Ronson was brought up in Masorti Judaism and had a Bar Mitzvah. The family name was originally "Aaronson," but was shortened by Mark's grandfather Henry. He is the nephew of Gerald Ronson. Through his mother, he is also related to British Conservative politicians Sir Malcolm Rifkind and Leon Lord Brittan, as well as Odeon Cinemas founder Oscar Deutsch. He is not related to the late English guitarist Mick Ronson, who coincidentally fathered a son named Mark in 1975.