Fifth Harmony is an American girl group formed on the second season of the The X Factor USA in July 2012. The group consists of members Ally Brooke, Normani Kordei, Dinah Jane, Camila Cabello, and Lauren Jauregui. They signed a joint deal with Syco Music, owned by Simon Cowell, and Epic Records, L.A. Reid's record label, after finishing in third place on the show.

Following their exit from The X Factor, they released their debut single "Miss Movin' On", which charted within the Hot 100 and was certified gold in the U.S.. The following year, the video won the group the Artist to Watch award at the MTV Video Music Awards. Their debut EP, Better Together was released in 2013 with a first week position of number six on the U.S. Billboard 200. The group released their debut studio album, Reflection in 2015 debuting at number five on the Billboard 200 and receiving a gold certification from the RIAA. The album included the platinum singles "Boss", "Sledgehammer" and "Worth It". The latter achieved triple platinum certification in the U.S. and reached the top 10 in thirteen countries. "Work from Home", the lead single from their sophomore album 7/27 (2016), became the group's first top 10 single on the Billboard Hot 100 and the first top 5 by a girl group in a decade.

With 10 million certified records sold in the United States, Fifth Harmony has emerged as the most successful alumni from the X Factor U.S. franchise.