Country pop, with roots in both the countrypolitan sound and in soft rock, is a subgenre of country music that first emerged in the 1970s.^{[citation needed]} Although the term first referred to country music songs and artists that crossed over to Top 40 radio,^{[citation needed]} country pop acts are now more likely to cross over to adult contemporary.^{[citation needed]}

The joining of country and pop began in the 1950s when studio executives Chet Atkins and Owen Bradley wanted to create a new kind of music for the young adult crowd after “rockabilly stole away much of country music's youth audience”. According to Bill Ivey, this innovative genre originated in Nashville, Tennessee and thus became known as Nashville Sound. He believes that the “Nashville Sound often produced records that sounded more pop than country” after the removal of the fiddle and banjo. Patsy Cline, Jim Reeves, and Eddy Arnold were among the most popular artists during this time. This was intended to have country singers gain more success in pop music and sell more records.^{[citation needed]} The first male artists to come out of this new genre were Jim Reeves and Eddy Arnold, who both grew to have widespread acceptance in both country and pop music.^{[citation needed]} Both Jim Reeves and Eddy Arnold had major influence on their RCA labelmate Elvis Presley, apparent not only in secular songs, but even more so in country gospel songs. The first female country singer to emerge from this new genre was Patsy Cline in the early 60s.^{[citation needed]} She created a whole new breed of female country artists,^{[citation needed]} such as Lynn Anderson, Crystal Gayle and Shania Twain, who gained prominence in later years. Even though Cline also gained widespread acceptance from country and pop audiences alike, the Nashville Sound did not maintain its popularity for long,^{[citation needed]} receiving competition first from the Bakersfield Sound and later the outlaw movement.^{[citation needed]}

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".

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.

Christina Judith Perri (born August 19, 1986) is an American singer-songwriter and musician from Philadelphia. Her song "Jar of Hearts" charted in the United States after it was featured on the Fox television show So You Think You Can Dance in 2010. Rolling Stone named her the "Band of the Week" on October 26, 2010. On May 10, 2011, Perri's "Jar of Hearts" was featured on Glee (Season 2, Episode 20 "Prom Queen"). Also, on June 27, 2011, Perri's "Jar of Hearts" was featured on Switched at Birth (Season 1, Episode 4 "Dance Amongst Daggers"). One of her songs, "A Thousand Years", has been in the Twilight saga movie Breaking Dawn.

Perri grew up in Bensalem, Pennsylvania (a suburb of Philadelphia) with her older brother, Nick Perri, who formerly played guitar with Shinedown, Silvertide, Perry Farrell and Matt Sorum. Her father is from Italy. She attended Archbishop Ryan High School as a member of the class of 2004. She taught herself how to play guitar as a 16-year-old by watching a videotape of Shannon Hoon from the group Blind Melon performing on VH1.

Henry John Deutschendorf, Jr. (December 31, 1943 – October 12, 1997), known professionally as John Denver, was an American singer/songwriter, activist, and humanitarian. After traveling and living in numerous locations while growing up in his military family, Denver began his music career in folk music groups in the late 1960s. His greatest commercial success was as a solo singer. Throughout his life Denver recorded and released approximately 300 songs, about 200 of which he composed. He performed primarily with an acoustic guitar and sang about his joy in nature, his enthusiasm for music, and relationship trials. Denver's music appeared on a variety of charts including country & western, the Billboard Hot 100, and adult contemporary, in all earning him 12 gold and 4 platinum albums with his signature songs "Sunshine on My Shoulders", "Take Me Home, Country Roads", "Leaving on a Jet Plane", "Rocky Mountain High", "Annie's Song", and "Calypso".

Denver further starred in films and several notable television specials in the 1970s and 1980s. In the following decades he continued to record, but also focused on calling attention to environmental issues, lent his vocal support to space exploration, and testified in front of Congress to protest censorship in music. He is known for his love of the state of Colorado, which he sang about numerous times. He lived in Aspen, Colorado, for much of his life, and influenced the governor to name him Poet Laureate of the state in 1974. The Colorado state legislature also adopted "Rocky Mountain High" as one of its state songs in 2007. He was an avid pilot, and died while flying his personal aircraft at the age of 53. Denver was one of the most popular acoustic artists of the 1970s.