Beyonce's daughter Blue Ivy danced with her mum in a $2,100 Dress

Beyonce shared an adorable photo of herself dancing with her 3-year-old daughter Blue Ivy on Sunday, both of them stunning in matching white dresses. Turns out the beautiful dress Blue Ivy had on was a Mischka Aoki "Sparkling Crystal" dress, which retails for a whopping $2,100 at Bergdorf Goodman. Flawless!