Alex oozed elegance in the knee-length dress as arrived at London's Grosvenor House Hotel on Monday evening (6 October).
Sporting sleek and super-long hair extensions, the singer and Bodyguard Musical star beamed as she posed for photographers. She teamed her structured dress with gold cuffed heels.
And no wonder Alex looked so radiant, as the X Factor star told fans on Twitter that she had just got back from a spa weekend. There's nothing like a bit of relaxation and pampering!
The annual Pride of Britain Awards: A Night of Heroes celebrates the achievements of remarkable individuals, and it was a star-studded affair as celebs gathered to congratulate winners are from all walks of life.
Alex was joined at the prestigious ceremony by the likes of X Factor judges Cheryl Fernandez-Versini and Simon Cowell, who arrived with his girlfriend Lauren Silverman.
Also in attendance was Danielle Lloyd, N-Dubz star Tulisa, who made her red carpet return, TOWIE's Chloe Sims and pregnant Good Morning Britain presenter Charlotte Hawkins.
Taking to Twitter at the end of the night, Alex said: "An amazing yet emotional night tonight at the @PrideOfBritain awards! So beautiful to be surrounded by people who give so much for others x."
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