JLS unveil 'Hottest Girl in the World' video - watch
The track, which was produced by Bangladesh, will be released in the UK on October 21.
It serves as the lead single from their fourth studio album Evolution, which will be released on November 5.
Speaking of the new record, the band said: "We're very excited about it and this is the album we wanted to make, we wanted to make this for our fans.
"We didn't go by any kind of guidelines or anything like that, we just made what felt right and we're really excited about it!"
JLS member Aston Merrygold recently revealed that he is dating one of the group's backing dancers.