Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter and occasional actress. Raised in Wyomissing, Pennsylvania, Swift moved to Nashville, Tennessee at the age of fourteen to pursue a career in country music. She signed to the independent label Big Machine Records and became the youngest songwriter ever hired by the Sony/ATV Music publishing house. The release of Swift's self-titled debut album in 2006 established her as a country music star. "Our Song", her third single, made her the youngest sole writer and singer of a number one song on the country chart. She received a Best New Artist nomination at the 50th Grammy Awards.

Swift's second album, Fearless, was released in late 2008. Buoyed by the chart success of the singles "Love Story" and "You Belong with Me", Fearless attracted a crossover audience and became the top-selling album of 2009. The record won four Grammy Awards, with Swift becoming the youngest ever Album of the Year winner. Fearless also received Album of the Year plaudits at the American Music Awards, Academy of Country Music Awards and Country Music Association Awards, making it the most awarded album in country music history. In 2010, Swift released her third album, Speak Now, which sold over one million copies in its first week. She then embarked on the 111-date Speak Now World Tour, which was attended by over 1.6 million fans and has become one of the highest-grossing concert tours of all time. The album's third single, "Mean", won two Grammy Awards for Best Country Song and Best Country Solo Performance. Swift is currently recording her fourth studio album, due for release in the fall of 2012.

Sir James Paul McCartney, MBE, Hon RAM, FRCM (born 18 June 1942) is an English musician, singer-songwriter and composer. Formerly of the Beatles (1960–1970) and Wings (1971–1981), he has been described by Guinness World Records as "The Most Successful Composer and Recording Artist of All Time", with 60 gold discs and sales of over 100 million albums and 100 million singles. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles, and with Lennon formed one of the most celebrated songwriting partnerships of the 20th century. After leaving the Beatles, he began a solo career and later formed the band Wings with his first wife, Linda Eastman, and singer-songwriter Denny Laine.

According to the BBC, his Beatles song "Yesterday" has been covered by over 2,200 artists—more than any other song. Wings' 1977 release, "Mull of Kintyre", became one of the best-selling singles ever in the UK, and he is "the most successful songwriter" in UK chart history, according to Guinness. As a songwriter or co-writer, he is included on thirty-one number one titles on the Billboard Hot 100, and as of 2012 he has sold over 15.5 million RIAA certified units in the United States.

Eric Marlon Bishop (born December 13, 1967), professionally known as Jamie Foxx, is an American actor, singer-songwriter, rapper, stand-up comedian, and talk radio host who began playing the piano when he was five years old. As an actor, his work in the film Ray earned him the Academy Award and BAFTA Award for Best Actor as well as the Golden Globe Award for Best Actor in a musical/comedy. He is also a Grammy Award winning musician, producing three albums which have charted highly on the Billboard 200: Unpredictable, which topped the chart, Best Night of My Life and Intuition.

Born in Terrell, Texas, Foxx was raised by his mother's adoptive parents. He performed in high school and was awarded with a scholarship to United States International University. In his twenties, Foxx began performing stand-up at comedy clubs, and eventually joined the cast of In Living Color in 1991; this exposure helped him land film roles and star in his own sitcom, The Jamie Foxx Show. He released his debut album, Peep This, in 1994, but he did not gain significant musical success until 2004 when he was featured in Twista's song "Slow Jamz". Also in 2004, Foxx played critically acclaimed roles in the films Collateral and Ray. He released his second album, Unpredictable, in 2005, which was helped by his collaboration on Kanye West's number-one single "Gold Digger". His third album Intuition was released in 2008 and was anchored by the single "Blame It". Foxx released his fourth studio album, Best Night of My Life, in 2010.