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Fifth Harmony Drop Video For New Single Sledgehammer

And US girl group have a famous fan in Cheryl Fernandez-Versini...

Fifth Harmony have premiered the promo video for their European debut single Sledgehammer.

The five-piece girl group - who found fame on The X Factor USA - have dropped the video for the Meghan Trainor-written track on YouTube.

Beginning with the fivesome all in white as they perform a signature dance routine for the track, it later introduces shots of them wearing colourful floaty dresses as they sit on what appear to be trapeze rungs.

Men with hammers, a wind machine and scaffolding also appear at various points throughout the promo - which clocks in at almost four minutes.

The girls might not be very well known on these shores yet, but they have one fan in Cheryl Fernandez-Versini - who has been bigging them up on Twitter.

She wrote on Sunday: "Who has heard of fifth harmony ? I love them. What is your favorite song of theirs ?!!"

Who has heard of fifth harmony ? I love them. What is your favorite song of theirs ?!!

— Cheryl (@CherylOfficial) November 23, 2014

The group was put together by mentor Simon Cowell on the 2012 series of The X Factor USA and have since had a series of hits.

They are set to perform on the UK version of The X Factor on 7 December - which also happens to be the day the single is released.

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