In 1990, Hans and his assistant Sittah won the Grand Prix of the Netherlands and the Henk Vermeijden Cup with "the fastest metamorphosis in the world".

In 1994, Klok performed for the first time on the Las Vegas Strip, as part of NBC's The World's Greatest Magic, broadcast live from Caesars Palace to an audience of 60 million people.

For the 2011 Dutch daredevil TV show Try before you die 2 Klok, for his dare, was asked to take part in a Chippendales-show performed at The Chippendales Theatre (Rio All-Suite Hotel & Casino) in April 2011.

In February and March 2012, Klok visited the UK with his stage show The Houdini Experience, playing a five-week run at the Peacock Theatre in London, The gala opening night featured model and actress Linda Lusardi taking on a similar role to Pamela Anderson and acting as Klok's assistant for the evening, including the Buzzsaw finale.

There, he entertained the invited VIP guests with a number of tricks and illusions, including the levitation and sawing in half of TV presenter and model Alexa Chung.

However, she was unable to perform in the show after suffering a temporary paralysis of her right arm a few days beforehand, and so Chung stepped in at short notice to replace her.

In May 2013 Klok performed the Illusion Challenge again in the Plus Grand Cabaret du Monde, which was broadcast on France 2, a French television channel.