David Nicholls, who previously wrote bestseller 'One Day', said he was eating his breakfast in New York when he heard the "unexpected news".
The Miami teenager's videos of outrageous stunts have gone viral and attracted a record one billion loops on the social media site.
Iron Man star Robert Downey Jr earned $75 million over the past year, according to Forbes.com.
Daniel Radcliffe, famous for his role as the young wizard in the Harry Potter films, marks his 25th birthday today.
With estimated annual earnings of around £12.5m, the London-born actor is worth a staggering $110m (£65m), according to Celebrity Net Worth.
At 11-years-old, the star first hit our screens as Harry Potter in 2001, playing his wizard role for ten years, before hanging up his cloak for good.
Since the release of the franchise’s final film, Harry Potter And The Deathly Hallows Part 2, Daniel has continued his success, starring in a variety of films including The Woman In Black.
Lawyers for Angelo Adkins, the two-year-old son of singer Adele, have accepted a five-figure sum in damages at the High Court over paparazzi photos.
Downton Abbey will be back for its fifth season on January 4, US broadcaster PBS said - but the return date for another hit British series Sherlock is up in the air.
PBS chief executive Paula Kerger said of the show starring Benedict Cumberbath: "We will have to wait to know when it's finished and available."
All episodes of Ken Burns' The Roosevelts, for instance, will be available for streaming the day after the first episode airs on September 14. "Downton Abbey will have some surprises in it. I think you know what's going to happen to the Roosevelts," said Ms Kerger.
Former X-Factor judge Tulisa Contostavlos has tweeted a message of thanks to her supporters after her trial for drugs allegations collapsed at Southwark Crown Court earlier today.
Thank you to everyone for your amazing messages of support today ? x
Tulisa Contostavlos said her life had been "ruined" for the last year by what she called "entrapment" from an undercover reporter working for the Sun.
Speaking outside Southwark Crown Court, the singer and former X Factor judge called on the police and the Sun's publishers, News UK, to look into Mazher Mahmood's conduct.
The judge in the case said there were "strong grounds" to believe Mahmood had "lied" and given "entirely inconsistent" evidence.
The judge in the Tulisa Contostavlos trial said evidence given by undercover reporter Mazher Mahmood was "entirely inconsistent".
Explaining his decision to throw out the trial, Alistair McCreath said the prosecution's case had become "tainted" by "serious misconduct".
Before the start of the trial, Contostavlos' lawyers had attempted to have the prosecution "stayed", meaning it would have been thrown out before beginning.
The court hear that there was a problem with evidence provided by a driver called Alan Smith, who originally said he had heart Contostavlos speaking disapprovingly about drugs when she was in his car.
He then "changed his mind", after a conversation with Mahmood, the court was told.
At a pre-trial hearing, Mahmood denied having had any conversation with Mr Smith about what Contostavlos had said.
But the judge said when asked about the same topic during the trial, Mahmood gave answers that were "entirely inconsistent".