Kate Middleton going Halloween shopping in Sainsbury's is going viral

Kate Middleton is one of the most talked about women in the world, from her relationship with Prince William to their three Cambridge children – Prince George, Princess Charlotte and Prince Louis – entertaining the world on the regular.

But it wasn’t Princess Charlotte’s signature sass (we’re still laughing at that viral tongue sticking out video) or Prince Louis’ royal wave that got the world talking this week. Instead, it was Kate herself, and more specifically how relatable she is.

Kate and Wills have always been known to be relatable royals, from their opting to fly economy to their Game of Thrones obsessions.

This week however it was their shopping tendencies that went viral as Kate Middleton was spotted browsing the aisles in Sainsbury's with George and Charlotte this week.

And what was the Duchess of Cambridge buying? Halloween costumes of course.

The Mirror reported that Kate, George and Charlotte spent a while selecting their costumes in the supermarket, with one fellow shopper, Kathy Whittaker spotting them from afar.

'She was with Charlotte and George looking at Halloween outfits, but her bodyguard was kind of watching people with phones and telling them no pictures,' the shopper told the publication.

'I managed to get the photo as she was at the self-service check-out. I didn’t see what she actually bought. The lady that told me she was there had children with her, and she said Kate was asking her children what they were going to be for Halloween. I think she bought some Halloween bits for her kids but I don’t know what.'

What will the Cambridges be dressing up as this year? We'll have to wait and see.

Instagram photos please, Cambridges!