Still newlyweds, Leandro Zeferino Micaelo and his wife, Ursula Nunez Rossi, can't afford to work if they're angry with each other.

The two are circus performers with a high-speed roller-skating act that is downright scary to watch.

"It's really dangerous," Micaelo says. "It's pretty fast, like four Gs."

What makes the act scary to watch is not just that it's G-force fast - it's that the two do their acrobatics on a 5-foot diameter platform that is suspended above the ground, leaving zero room for error.

"We work at 8 to 9 feet in height," Micaelo says.

Rossi's skates barely touch the platform as her husband lifts and spins her, suspending her in mid-air. A mistake by either one would be disastrous, resulting in serious injury or worse.

The duo will perform Jan. 22-26 when the "Greatest Show on Earth," the Ringling Bros. and Barnum & Bailey Circus, presents "Super Circus Heroes" at the Martin Luther King Jr. Arena. The acts will showcase athletic performers, Asian elephants, horses, camels and of course, the clowns.

Performers will meet with the public in an interactive all-access pre-show, which will take place on the arena floor one hour before the show opens. It is free to all ticket holders.

Roller skating is not as commonly seen in circuses as other acts, but it does have a circus history. Roller skating is believed to have been invented in the 18th century.

Both Micaelo and Rossi have performed in several circus acts before. He is a sixth-generation circus performer, while she is a fifth-generation circus performer whose family owns a circus in Spain.

Micaelo was just 3 years old when he started performing with his father, a bicycle acrobat.

"I remember being backstage and everyone saying, 'Don't be nervous,'" he says.

Rossi and Micaelo met when he joined her family's circus.

"She is one of the daughters of the boss," he says with a laugh. "We liked all the same things and had so many things in common."

The two share a love of ice skating, which inspired the current act.

"Ice skating in a circus would be very difficult because you can't put up a stage of ice," Micaelo says. "I was a juggler before this act. This was difficult for me at first, but you have to work very hard and try to do it.

"We practiced for almost two years," he says. "We've been doing the act for three years already."

Being in a circus means constant travel, but everyone becomes like family, Micaelo says.

"Every time we change a circus, I think it's not going to be the same," he says. "But circus people are so good. Every time we change, they treat us like one of the family.

"I think everywhere, the circus is like that," Micaelo says. "They make you feel like you are one of them."

Micaelo has worked in France, Spain, Korea, Japan, Singapore - literally around the world.

"I hope I can do it for a lot of years," he says. "I plan to do this as long as I can."

Between contracts, the couple might find time to visit family, but other than that, they're on the road.

"What we like is to be working," Micaelo says.

"And as for getting tired of the traveling, actually, no, we don't," he says. "When we stay in one place, we get tired of being there."

Micaelo wants to invite everyone to see the show.

"They are going to enjoy it," he says. "I think it's one of the best shows in the world."

Audience reaction is always strong to the skating act, he says.

"People are not used to seeing skating that high on that small platform and they get scared," Micaelo says. "But they like it a lot."