There was a terrific turnout in Federation Square on Friday to help e.motion21 celebrate people with Down syndrome.

The event was held ahead of World Down Syndrome Day, with Carlton players Kade Simpson, Dennis Armfield, Dale Thomas, Troy Menzel Ciaran Byrne and Ciaran Sheehan on hand to join in the fun.

The Blues players took to the stage with Beat Fit dancers to help get people moving.

Founder and CEO of e.motion21 Cate Sayers says the day was about showcasing the talents of people with Down syndrome.

"We're all about moving bodies and moving boundaries, and to have so many people here in the crowd, what we love is that they walk away and think 'wow – I didn't know people with Down syndrome could do that, that was awesome,'" she said.

Carlton's Kade Simpson is an ambassador for Down Syndrome Victoria and says while dancing on stage was a little outside his comfort zone, he was rapt to see the smiles on the faces of participants.

"It's a bit of fun and creates great awareness for all the support groups that help out people with Down syndrome," Simpson said.

For more details on e.motion21 check out their Facebook page or visit emotion21.org.au.