Steven Tyler (born Steven Victor Tallaricco; March 26, 1948) is an American singer, songwriter, and multi-instrumentalist, best known as the frontman and lead singer of the Boston-based rock band Aerosmith, in which he also plays the harmonica, and occasional piano and percussion. He is known as the "Demon of Screamin'" due to his high screams and his wide vocal range. He is also known for his on-stage acrobatics. During his high-energy performances, he usually dresses in bright, colorful outfits with his trademark scarves hanging from his microphone stand. In the 1970s, Tyler rose to prominence as the frontman of Aerosmith, which released such milestone hard rock albums as Toys in the Attic and Rocks. In the late 1970s and early 1980s, Tyler had a heavy drug and alcohol addiction, and the band's popularity waned.

He completed drug rehabilitation in 1986 and subsequently maintained sobriety for years, but had a relapse with prescription painkillers in the late 2000s, for which he successfully received treatment in 2009. After Aerosmith launched a remarkable comeback in the late 1980s and early 1990s with the albums Permanent Vacation, Pump, and Get a Grip, Tyler became a household name and has remained a relevant rock icon. As a result, he has since embarked on several solo endeavors including guest appearances on other artists' music, film and TV roles (including as a judge on American Idol), authoring a bestselling book, and solo work (including a Top 40 hit single in 2011). However, he has continued to record music and perform with Aerosmith, after more than 41 years in the band. He is included among Rolling Stone's 100 Greatest Singers. He was also ranked 3rd on Hit Parader's Top 100 Metal Vocalists of All Time. In 2001 he was inducted into the Rock and Roll Hall of Fame with Aerosmith, and he was the presenter when AC/DC was inducted into the Hall of Fame in 2003.

Carrie Marie Underwood (born March 10, 1983) is an American country singer, songwriter and actress who rose to fame as the winner of the fourth season of American Idol, in 2005. Underwood has since become a multi-platinum selling recording artist, a winner of several Grammy Awards, Billboard Music Awards and American Music Awards, a Golden Globe Award nominee, a three-time Academy of Country Music and Country Music Association Female Vocalist winner, and a two-time ACM Entertainer of the Year. She is the first-ever female artist to win back-to-back Academy of Country Music (ACM) Awards for Entertainer of the Year (2009/10). Underwood was inducted into and became a member of the Grand Ole Opry in 2008. She was also inducted into the Oklahoma Music Hall of Fame in 2009.Billboard named Underwood Country Music's reigning Queen in 2012.

Samuel Timothy "Tim" McGraw (born May 1, 1967) is an American country singer and actor. Many of McGraw's albums and singles have topped the country music charts with total album sales in excess of 40 million units in the US, making him the eighth best-selling artist, and the third best-selling country singer, in the Soundscan era. He is married to country singer Faith Hill and is the son of former baseball player Tug McGraw.

McGraw had 11 consecutive albums debut at Number One on the Billboard albums charts. Twenty-one singles hit No. 1 on the Billboard Hot Country Songs chart. He has won 3 Grammys, 14 Academy of Country Music awards, 11 Country Music Association (CMA) awards, 10 American Music Awards, and 3 People's Choice Awards. His Soul2Soul II Tour with Faith Hill is the highest grossing tour in country music history, and one of the top five among all genres of music.

McGraw has ventured into acting, with supporting roles in The Blind Side (with Sandra Bullock), Friday Night Lights, The Kingdom, and Four Christmases (with Vince Vaughn and Reese Witherspoon), and lead roles in Flicka (2006) and Country Strong (2010). He was a minority owner of the Arena Football League's Nashville Kats. Taylor Swift's debut single, "Tim McGraw", refers to him and his song, "Can't Tell Me Nothin'".