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Alicia Augello Cook (born January 25, 1981), better known by her stage name Alicia Keys, is an American R&B singer-songwriter, record producer, and actress. Keys was raised by a single mother in the Hell's Kitchen area of Manhattan in New York City. At age seven, Keys began playing the piano. She attended Professional Performing Arts School and graduated at 16 as valedictorian. Keys released her debut album with J Records, having had previous record deals first with Columbia and then Arista Records.

Keys' debut album, Songs in A Minor, was a commercial success, selling over 12 million copies worldwide. She became the best-selling new artist and best-selling R&B artist of 2001. The album earned Keys five Grammy Awards in 2002, including Best New Artist and Song of the Year for "Fallin'". Her second studio album, The Diary of Alicia Keys, was released in 2003 and was also another success worldwide, selling eight million copies. The album garnered her an additional four Grammy Awards in 2005. Later that year, she released her first live album, Unplugged, which debuted at number one in the United States. She became the first female to have an MTV Unplugged album to debut at number one and the highest since Nirvana in 1994.

Samuel "Sam" Tsui (Born May 2, 1989) is a musician and Internet celebrity who rose to fame on YouTube. He is best known for covering and performing songs by popular artists such as Adele and Bruno Mars, as well as original medleys and mashups. Tsui graduated from Yale University in 2011.

According to his profile on The Duke's Men of Yale's official website, Tsui is from Blue Bell, Pennsylvania. Tsui grew up a street away from Kurt Schneider, his producer and accompanist, with whom he attended Wissahickon High School. He was active in high school musicals, including Joseph and the Amazing Technicolor Dreamcoat, Urinetown, and Miss Saigon. Tsui attended Yale University, where he was a member of Davenport College and The Duke's Men of Yale, an all-male a cappella group. He graduated Magna Cum Laude with a major in classical Greek in 2011. Sam is proficient in the C++ programming language, as stated in an interview on March 5..

Collaborations between Sam Tsui and Kurt Hugo Schneider began in high school with an electronic keyboard, primitive recording equipment, and GarageBand. Both attended Yale University, and there a musical partnership developed. They have produced videos ranging from covers and original medleys to the College Musical online series. As of February 2012, the YouTube channel "KurtHugoSchneider" has garnered over 350 million total views and a million subscribers. The most viewed video is Just a Dream, with more than forty million views. His videos have been described by Time as a combination of Glee and Attack of the Clones.

Ryan John Seacrest (born December 24, 1974) is an American radio personality, television host and producer. He is known internationally as host of the top-rated primetime talent showcase American Idol. He has been nominated for an Emmy award in the "Outstanding Host for a Reality or Reality-Competition Program" category for his work on American Idol. He won a Daytime Emmy Award for co-hosting the 2005 Walt Disney World Christmas Day Parade with Regis Philbin and Kelly Ripa. As a television producer, Seacrest has won an Emmy for the ABC show Jamie Oliver’s Food Revolution. On radio, Seacrest is host of On Air with Ryan Seacrest, his market-topping #1 nationally syndicated LA morning drive-time radio show for Clear Channel’s 102.7 KIIS-FM. , as well as a nationally-syndicated Top 40 radio show. Seacrest hosted the 59th Primetime Emmy Awards on September 16, 2007. Seacrest has extensive deals with brand heavyweights Proctor & Gamble, Coca-Cola and Microsoft, and has a strategic marketing and technology alliance with Eventful, Inc.

Kamaljit Singh Jhooti, better known by his stage name Jay Sean, is a British singer-songwriter, rapper, beatboxer and record producer. He debuted in the UK's Asian Underground scene as a member of the Rishi Rich Project with "Dance with You", which reached #12 on the UK Singles Chart in 2003. This led to him being signed to Virgin Records and having two UK top 10 hits as a solo artist in 2004: "Eyes On You" at #6 and "Stolen" at #4. They were included in his critically acclaimed debut album Me Against Myself which, though only moderately successful in the UK, sold more than two million copies across Asia and remains his most successful album to date. Alongside the Rishi Rich Project, Sean was a pioneer of Bhangra-R&B fusion, which his debut album helped popularize among the worldwide South Asian diaspora.

He eventually left Virgin in 2006 and founded his own independent label, Jayded Records. After a gap of nearly four years, he returned in 2008 with "Ride It", which reached #11 in the UK and topped the charts in several Eastern European countries, including Romania where it was one of the best-selling singles of the year. It was followed by hits such as "Maybe", which reached #7 on the Japan Hot 100, and "Tonight". They were included in his second album, My Own Way, which became his most successful album on the UK Albums Chart, reaching #6, and topped the UK R&B Chart. At around this time, he began increasingly incorporating electropop sounds into his R&B music.