The X Factor USA stars - Ally Brooke Hernandez, Normani Kordei, Dinah Jane Hansen, Camila Cabello and Lauren Jauregui - will take their 'Reflection Tour' to six cities in November.
They announced the news on Wednesday evening (2 September): "It's happening!!! #5HTakesEurope Spain, Amsterdam, UK, Germany & France... we can't wait to see you."
Well, we can definitely expect their loyal fans - aka Harmonizers - to be out in force!
The girls recently told Reveal: "Our fans are troopers. They can literally can do anything they set their minds to. You can say that they need to stream a song a billion times in a day in order for us to meet a certain goal and they'd do it, it's amazing.
"They are the most supportive and loving group of people and we feel so humbled and honoured to have their support."
See their full tour dates below:
26: Madrid, Spain
31: Amsterdam, Netherlands
8: Frankfurt, Germany
9: Paris, France
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Watch Fifth Harmony's video for 'Worth It' below: