Fifth Harmony are celebrating after their debut album hit No.1 on the US iTunes chart.

The girl group released their maiden effort 'Reflection' today (February 3) in the States.

At the time of writing, the effort is No.1 on the US iTunes albums chart ahead of Shawn Mendes and Taylor Swift.

The record features the singles 'BO$$' and 'Sledgehammer'.

Speaking recently about 'Reflection', singer Camila Cabello said:

"We’ve been working on this album for almost a year now. The album definitely has a contrast of us being vulnerable, which people haven’t seen that side. And also, the whole girl power thing, you know?”

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