Aishwarya Rai Bachchan is all set to slay this year at Cannes Film Festival. Over the years, her red carpet looks at Cannes have won a million hearts. Here's a look at some of the best outfits she wore at Cannes.Aishwarya Rai Bachchan is all set to slay this year at Cannes Film Festival. Over the years, her red carpet looks at Cannes have won a million hearts. Here's a look at some of the best outfits she wore at Cannes.