The 41-year-old British actress was dressed up to the nines for a night at the theatre.
Opting for a skintight bright white gown, Kate proudly showed off her enviable hourglass figure and toned curves.
The off-the-shoulder number featured a mesh fabric with cut-out detailing which perfectly complimented the thespian's tanned complexion.
Pairing the statement number with a neon pair of woven stilettos and a classic padded shoulder bag, Kate oozed elegance at the West End event.
Sweeping her dark brunette locks back into a stylish up-do, the Oxford-educated beauty smouldered with dark charcoal eye make-up and a slick of glossy pink lipgloss.