David and Leeman perform Magic on America's Got Talent 2014 (VIDEO)

David and Leeman perform Magic on America's Got Talent 9 Quarter Finals #1 on Tuesday, July 29, 2014.

The performance was held live at Radio City Music Hall in New York City.

This was a long and elaborate trick.

The judges were split in the middle if it was good or not.

"Your shenanigans..." said judge Howie Mandel.

"How do you do it?" said judge Mel B. "You got me, you got everybody at home."

"I loved your last act a bit more than this one," said Heidi Klum. "This was confusing."

"You guys are very likable," said Howard Stern. "You almost lost me... and then you pulled it out. You pulled it off but be careful."

The results of the Quarter Finals #1 will be revealed on Wednesday, July 30, 2014.

Watch the performance video here: