On 19 May, Little Mix announced through their official Twitter that "Power" would be released as the album's fourth and final official single on 26 May. Two hours after the announcement of the single's release, they announced that the single release of "Power" would be remixed, with an added feature from English grime act Stormzy. The song peaked at number two in Scotland, number seven in New Zealand, and reached number six on the UK Singles Chart, which became the group's eleventh top 10 single in the United Kingdom, and the third from "Glory Days". The single also reached the top 20 in Ireland and Belgium, as well as the top 40 in Latvia and the Philippines. It has become a female empowerment song and was used as one of the theme songs for WWE's Royal Rumble 2018 event. The song has since been certified double platinum in Brazil and the United Kingdom.