New chat show host falls for prank on own show

A US chat show host has fallen victim to a perfectly executed April Fools' prank on his own program.

As James Corden, who is only in his second week as host of The Late Late Show, prepares to welcome news anchor Katie Couric she suddenly takes a violent tumble down the stairs.

A swearing Corden immediately rushes over where the 58-year-old is slumped at the bottom of the stairs.

"Are you OK, is someone around?" he asks looking worried.

But just then the real Couric appears at the top of the stairs and the victim is revealed as a stuntwoman.

"That's ridiculous!" Corden exclaims falling to the ground as the truth sinks in.

Corden wasn't the only talk show host to fall victim to a April Fools' prank.

Jimmy Kimmel got a wake-up call to remember, with Rihanna staging a mini-concert in his bedroom at 1am...read more.