Karla Camila Cabello Estrabao (born March 3, 1997) is a Cuban-American singer, songwriter, and actress.

She rose to prominence as a member of the girl group Fifth Harmony, formed on The X Factor (U.S.) in 2012, signing a joint record deal with Syco Music and Epic Records.

While a part of Fifth Harmony, Cabello began to establish herself as a solo artist with the release of the collaborations "I Know What You Did Last Summer" with Shawn Mendes, and "Bad Things" with Machine Gun Kelly, the latter reaching number four on the Billboard Hot 100.

Hailey Rhode Bieber (born November 22, 1996) is an American model and television personality.

She lives in Waterloo, Ontario, Canada. She is married to Canadian singer Justin Bieber.

Taylor Alison Swift is an American singer-songwriter. She is known for narrative songs about her personal life, which have received widespread media coverage. At age 14, Swift became the youngest artist signed by the Sony/ATV Music publishing house and, at 15, she signed her first record deal.

Her 2006 eponymous debut album was the longest-charting album of the 2000s in the US. Its third single, "Our Song", made her the youngest person to single-handedly write and perform a number-one song on the Billboard Hot Country Songs chart. Swift's second album, Fearless, was released in 2008.

Buoyed by the pop crossover success of the singles "Love Story" and "You Belong with Me", it became the US' best-selling album of 2009 and was certified diamond in the US. The album won four Grammy Awards, and Swift became the youngest Album of the Year winner.