Her best friend's wedding.

Well maybe not Kate Middleton's best friend but certainly one of her closest gals, Sophie Carter, got married at the weekend. Sophie is godmother to Princess Charlotte so it was no major surprise that the little girl was a bridesmaid at the wedding and of course, Prince George wasn't far behind, acting as pageboy. CUTE. Although Kate wasn't an official bridesmaid, it seems she was behind the scenes making sure the littles were behaving themselves and doing what they were meant to be doing on the day. Mainly following Sophie around and looking adorable as ever. You might remember that Kate did the very same thing back in May 2017, when her sister Pippa married James Matthews. According to Hello! magazine, Kate was dressed in the same colours as the bridal party and this would signify that she was an unofficial bridesmaid, again similar to Pippa's big day. Robert, the groom, wore a blue tie and blue waistcoat and Kate was dressed in the exact same shade of blue, wearing a Catherine Walker coat dress and a floral headband. The page boys and bridesmaids wore blue and white although it seems as though Princess Charlotte wasn't too happy with her brother's antics, more on that here.