NEW YORK >> Before they hit the stage every night, Irish siblings Anna Mai and Fergus Fitzpatrick share a ritual: A hug and a low five.

“Like a high five, but instead of going high with it, we go lower just to be different,” Fergus Fitzpatrick says laughing.

It’s a sweet way to check in for a brother and sister dancing duo who are propelling “Riverdance 30 — The New Generation,” a touring celebration of the show that put Irish dance on the global map and has deepened their bond.

“Me and Anna Mai have grown up dancing together. So we’re like siblings, but we’re also like best friends,” says Fergus. “We always have that support system.”

Both were veteran winners of Irish dance competitions when they joined “Riverdance” in 2017, Fergus a few weeks ahead of Anna Mai.

“That was an incredible feeling — to get to share the stage and have that experience together,” she says. “It’s hard to describe it to another person. There’s an understanding of that feeling between us.”

The “Riverdance” tour that kicks off this month in Florida will visit over 40 cities, including Washington D.C., New York; Chicago, Philadelphia, Toronto, Boston, Indianapolis and Kansas City.

The tour has rejuvenated the original show with updated costumes, lighting and projections, featuring a new set of dancers — none were born when the show began 30 years ago.

“We have now a group of people that never knew life without ‘Riverdance.,” Anna Mai says

Anna Mai and Fergus come from a family in County Meath with seven siblings. She was the first to be attracted to traditional Irish step dancing, in which the arms and body move little while the feet create the sound and action.

It will come as no shock that her passion was cemented after her mother took her to see “Riverdance” live.

“I had been going to Irish dancing classes once a week, but that really set the foundation for ‘Oh my goodness, this is something that’s so beautiful to watch and that I want to be a part of.’”