Fifth Harmony is an American girl group formed on the second season of The X Factor US in July 2012. The group consists of members Ally Brooke, Normani Kordei, Dinah Jane, Lauren Jauregui and previously, Camila Cabello, whose departure was announced on December 18, 2016. In January 2013, 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. In December 2016, it was reported that all group members are also individually signed to Epic Records.

Following their exit from The X Factor, they released their debut single "Miss Movin' On", which was certified gold by the Recording Industry Association of America (RIAA). Its music video won the group the MTV Video Music Award for Artist to Watch. Their debut extended play (EP), Better Together (2013), had a first week position of number six on the US 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 singles "Boss", "Sledgehammer" and "Worth It". The latter achieved triple platinum certification in the United States and reached the top-ten in thirteen countries. "Work from Home", the lead single from their second album 7/27 (2016), became the group's first top-ten single on the US Billboard Hot 100 and the first top-five by a girl group in a decade on that chart.

Their accolades include four iHeartRadio Music Awards, three MTV Europe Music Awards, three MTV Video Music Awards, an American Music Award, a Billboard Women in Music award and seven Teen Choice Awards. As of December 2016, in the United States Fifth Harmony has sold a total of 424,000 albums, seven million digital songs and earned 1.6 billion on-demand streams, according to Nielsen Soundscan.