Watch: Teenager impersonates US presidential candidates in school speech

Jimmy Fallon, Stephen Colbert and Jimmy Kimmel might be just warming the seat for Jack Aiello, a Chicago eighth grader whose graduation speech has gone viral because of his uncanny impressions of this year's presidential candidates.

The 14-year-old's astonishing speech had the graduating class of 350 students in stitches and within hours the video was uploaded and the youngster's impressions were wowing the internet.

His father John Aiello said he had been doing impressions since he was very young and added: "He's a unique 14-year-old, but a humble kid."

Mr Aiello said the family were enjoying Jack's viral fame and added: "We're trying to look at it as a blessing, as fun. Be yourself and don't change and smile a lot."

The eight-minute speech was posted on YouTube last week by his father and has since received more than 23,000 views.

It was also shared on Twitter by Thomas Middle School.

"I've decided that since we're in the middle of an election year, that I would do my graduation speech in the style of some of the 2016 presidential candidates," began the teenager, before launching into a parody of the presumptive Republican nominee Donald Trump.

"You know, people say I don't like China, I love China. I mean, I love China. I mean, I have so many terrific friends in China. But I took Spanish and let me just tell you by the way that it was fantastic. Muy fantastico," he said, mocking Trump's perceived antipathy towards Mexican immigrants.

But Aiello was scrupulously impartial with his impressions and had his audience in hysterics with his take on Hillary Clinton.

"I'd like to start off by thanking the great hardworking teachers of Thomas Middle School. They've been our champions. They've given us the skills to get us through sixth grade and through seventh grade and through eighth grade. And now we're going to take those skills and apply them to high school," he said.

His father told 5NBC in Chicago: "If you were to ask him what he really wants to do, he really truly does want to be president someday. He feels a great desire to be a leader. A politician or a comedian, which the lines do sometimes blur."

His mother Carla Aiello said he had been doing impressions for years: "Family members, teachers, he even makes up his own silly voices and he's been doing that for a very long time, and then with the election, he watches the news clips and he just absorbs everything."

Aiello also did impressions of Ted Cruz, Carly Fiorina, Marco Rubio, Rand Paul and President Obama.

But the speech was rounded off by a rousing rendition of Bernie Sanders in which he praised the school's canteen and particularly the cinnamon rolls but added that they needed to be free, adding: "We need a cinnamon roll revolution."

It was greeted by huge applause, whooping and a standing ovation by the audience in the Arlington Heights auditorium.