"Yesterday" is a song originally recorded by The Beatles for their 1965 album Help!. The song remains popular today with more than 2,200 cover versions, and is one of the most covered songs in the history of recorded music. At the time of its first appearance the song was released by The Beatles' record company as a single in the United States but not in the United Kingdom (for further details see below). Consequently, whilst it topped the American chart in 1965 the song first hit the British top 10 three months after the release of Help! in a cover version by Matt Monro. "Yesterday" was voted the best song of the 20th century in a 1999 BBC Radio 2 poll of music experts and listeners and was also voted the No. 1 Pop song of all time by MTV and Rolling Stone magazine the following year. In 1997, the song was inducted into the Grammy Hall of Fame. Broadcast Music Incorporated (BMI) asserts that it was performed over seven million times in the 20th century alone.

"Yesterday" is a melancholy acoustic guitar ballad about a break-up. It was the first official recording by The Beatles that relied upon a performance by a single member of the band, Paul McCartney. He was accompanied by a string quartet. The final recording was so different from other works by The Beatles that the band members vetoed the release of the song as a single in the United Kingdom. (However, it was issued as a single there in 1976.) Although credited to "Lennon–McCartney", the song was written solely by McCartney. In 2000 McCartney asked Yoko Ono if she would agree to change the credit on the song to read "McCartney–Lennon" in the The Beatles Anthology but she refused.

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.

Savannah Outen (born October 14, 1992 in Hillsboro, Oregon) is an American singer who gained popularity on YouTube. Outen began posting videos of herself singing on YouTube in March 2007 along with Angelika Vee and Esmee Denters. In 2010 she collaborated with Boyce Avenue on their sixth acoustic album, New Acoustic Sessions. She appeared in the 85th Annual Macy's Thanksgiving Day Parade on November 24, 2011.

She has also been asked to sing the National Anthem at many professional sports venues, including the Oakland Raiders, Los Angeles Dodgers, Anaheim Angels, Seattle Mariners, Seattle SuperSonics, Seattle Storm, and the Portland Beavers. From 2002 to 2006 she was a member of the Junior BlazerDancers dance group. In 2006, she won the youth talent contest at the Washington County Fair in her hometown.

In fall 2007, Keith Thomas of Levosia Entertainment signed Outen to a recording and management contract. Savannah's first single from the three demo CD released by Levosia Entertainment was "Goodbyes." That song drew comparisons to Carrie Underwood and Britney Spears from MTV's Pop Cultured. Outen's first video was a cover of the song "Listen" from the motion picture Dream Girls