Beyonce’s daughter Blue Ivy Carter, nine, is almost as tall as her to promote IVY PARK kids’ range

Her children served as the inspiration for why she wanted to expand to children’s sizing for her clothing line.

So no doubt Beyonce had to make the promotional video for the launch a family affair.

The 39-year-old A-lister was joined by nine-year-old daughter Blue Ivy and four-year-old twins – daughter Rumi and son Sir – in an Instagram video posted on Wednesday introducing the new IVY PARK x Adidas kids line.

Family affair: The 39-year-old megastar was also joined by four-year-old twins; daughter Rumi and son Sir 

No doubt the most talked about moment from the clip will be that her eldest child was nearly as tall as the pop megastar.

The two wore matching cow patterned leggings along with grey hoodies and sneakers while strutting hand-in-hand as Blue’s head reached Beyonce’s shoulder.

My how you’ve grown! No doubt the most talked about moment from the clip will be that her eldest child was nearly as tall as the pop megastar

Big deal: Beyonce seemed excited to announce that her clothing line had expanded to children’s sizing as she was joined by young models in this snap