Fifth Harmony is an all-girl group formed on the second season of the hit TV show X-Factor. The group finished third on the show but have been proving they're a pop music force. Their debut single "Bo$$" was a hit and their follow up, "Sledgehammer" is quickly rising to the top. 5H member Ally Brooke called into Q97.9 and spoke to Midday host Mike Rovin about their rise to stardom. 

Check out the interview by clicking below.

Fifth Harmony's fan club, also called "Harmonizers" may not be as big (yet) as some of today's pop stars but they are extremely active and passionate; tweeting and Facebooking requests for the group to every radio station who will listen.

Here is the video for their new song Sledgehammer that debuted on Q97.9!

If you want to be a "Harmonizer," follow Fifth Harmony on Twitter and Facebook and listen for their new hit song Sledgehammer on Q97.9!