When 13-year-old Nicholas Connors belted out the national anthem before the Houston Rockets' playoff game Tuesday, the crowd's collective jaw dropped. 

Then Nicholas' own jaw dropped when Houston Texans superstar J.J. Watt ran right onto the court to shake his hand and let him know what a great job he had done.

We heard from Nicholas today on "Fox and Friends," and he recalled what it felt like to be suddenly face to face with one of America's best athletes. 

Then again, the picture kind of says it all, right?

"I was thinking it was just somebody from the audience [who wanted to say] 'good job.' ... It took me a second to realize that, oh my gosh, it's J.J. Watt. When I saw him, he shook my hand, he hugged me, I almost froze on the spot. I was so shocked," he said. 

Nicholas added that when the Defensive Player of the Year came out he was tired and his stomach was in knots after belting out the anthem. He was also dealing with laryngitis and tonsillitis, but as he said, the "show must go on."

Elisabeth praised Nicholas for showing great emotion in his rendition of the Star Spangled Banner.

He said that comes from his love and admiration for the country and for the men and women of the armed forces.

Nicholas said he hopes to be a professional singer someday, "up there with all the celebrities."

See Nicholas' amazing singing talent below.