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.

Vanessa Anne Hudgens (born December 14, 1988) is an American actress and singer.

Hudgens rose to prominence playing Gabriella Montez in the High School Musical series. Hudgens also has appeared in several television programs including Quintuplets, Still Standing, The Brothers García, Drake & Josh, and The Suite Life of Zack & Cody. In 2009, she earned critical acclaim for her role in the film Bandslam.

In addition to acting, Hudgens released her debut album V on September 26, 2006 which entered the Billboard 200 at number twenty four, and was later certified Gold. Her second album, Identified, was released on July 1, 2008 in the United States.

Hudgens was born in Salinas, California, and has lived with her parents throughout the West Coast from Oregon to Southern California. Her mother, Gina (née Guangco), held a succession of office jobs, and her father, Gregory Hudgens, was a firefighter. She has a younger sister, Stella Hudgens, who is also an actress. She was raised as a Roman Catholic. Hudgens is of mixed ethnic background, as her father is of Irish and Native American descent, and her mother, a native of Manila, Philippines, is of Chinese-Filipino-Spanish descent. All of her grandparents were musicians.