After only 25 minutes, one of Europe's most successful Saturday TV entertainment shows "Wetten, Dass..?" ("I Bet That...?") came to a sudden, tragic end in the Düsseldorf's venue Messehalle in front of 3,400 guests.

In front of over 8 million TV viewers in Germany, Austria and Switzerland, 23-year-old amateur stuntman Samuel Koch suffered serious back and neck injuries.

For the first time in its 29-year history the three-hour show was stopped. Take That, Cher, Cameron Diaz, Phil Collins and Justin Bieber were shocked and left Düsseldorf without performing or appearing on the Saturday night (Dec. 4) show.

Koch tried to flip over four driving cars with spring-powered stilts. He did not reach enough height for the fourth car, which was driven by his father, and crashed to the ground. He was treated by an emergency medical team and taken to the Düsseldorf university clinic.

Backstage, Justin Bieber prayed for Samuel Koch and via Twitter he asked fans to do the same. The members of Take That also said they were praying for Samuel's health in a statement.

The show is about unusual bets and difficult tasks that are performed by ordinary people. The other attraction is the appearance of top international and national stars and celebrities.