Keira Knightley appeared to give her wedding dress another outing at a charity gala on Tuesday night (December 3).

The actress chose the strapless, fairytale number for the 2013 SeriousFun Gala at the London Roundhouse, which she attended with her rocker husband James Righton of The Klaxons.

This marks the third occasion that Knightley has worn the dusty pink number to a high profile event, this time teaming it with a sheer overlay with cream beading at the collar and cuffs.

The prom-style gúna features a voluminous full-skirt and a form-fitting bodice, which suits her slender frame perfectly.

She completed the look with gold strappy heels and her signature coppery smokey eye makeup.