She gave an exclusive preview of her red carpet look to her fans by posting her picture on Twitter.
The 'Bang Bang!' star, who left for the film gala on Monday, was also seen talking to media about her first time at the film festival, where she chose to don a black and white ensemble.
Katrina, who had earlier emphasised that she wants to enjoy the film fest without fretting over her looks, picked up a white crop top and skirt from MILLY creation with shoes by Manolo Blahnik and jewellery by Maria Francesca Pepe, read a statement.
The 31-year-old completed her look with sleek auburn hair with luminescent makeup and nude lips.
Katrina, who is attending the film fest as a L'Oreal Paris brand ambassador, also took to micro-blogging site Twitter to share a glimpse of her journey.
Her fellow L'Oreal Paris brand ambassador Sonam Kapoor will grace the red carpet of the prestigious festival on Saturday and May 18.
Aishwarya Rai Bachchan, who has been a L'Oreal Paris ambassador for more than a decade, will walk on the red carpet on May 17 and 20. The actress will complete 14 years at Cannes with L'Oreal Paris.
Photos: AP
