Fifth Harmony have thanked their fans after enjoying a successful 2014.

The group released the singles 'BO$$' and 'Sledgehammer' this year and performed on the UK X Factor.

Speaking on Twitter overnight, the US band said that their past year was an "unforgettable" one.

They posted alongside a picture collage of themselves with highlights of the year:

"Harmonizers, you mean the world to us. 2014 was unforgettable because of you. Here's to 2015."

The group are due to release their debut album 'Reflection' in January.

Fifth Harmony meanwhile recently caught up with Pressparty about their New Year's resolutions - check out what they had to say here.

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