Beyonce’s little ones stole the show in a new campaign advertisement that celebrated the launch of IVY PARK Kids, an extension of the superstar’s widely-popular IVY PARK x Adidas collection. Queen Bey, 39, appeared in the campaign video alongside her daughter Blue Ivy, 9, and twins Rumi and Sir, 4, who all looked so grown up as they sported attire from the new clothing line.