The 'Home' singer's little boy is set to undergo treatment for liver cancer.
Watch Iron Man 3 teaser trailer
Take a sneak peak at the hugely anticipated third installment in the Iron Man film series, starring Robert Downey Jr.
Iron Man 3 sees Downey Jr play Tony Stark, a billionaire whose inventions enable him to become a superhero, for the fourth time. Gwyneth Paltrow and Ben Kingsley also star.
The official synopsis, released earlier this month, says the film will answer 'the question that has secretly haunted him: does the man make the suit or does the suit make the man?'
The 17-second teaser has been released ahead by Marvel ahead of the premiere of the movie's first full-length trailer on October 24th.
The star headed straight from the jungle to panto...but clearly hadn't had time to learn her lines!