The Little Mix star, 32, won for Best Pop Act, and quickly went viral for her chaotic acceptance speech, which saw her struggling get onstage and hiding her speech in the front of her dress.
The former Little Mix star, 32, who beat the likes of Charli XCX to be crowned Best Pop Act at the ceremony earlier in the evening, couldn't wipe the smile off her face.
The British singer, 32, made heartfelt speeches as she took home Best Album, Artist of The Year, Song Of The Year, Best Dance Act and Best Song Writing.