Simon Cowell's son Eric causes chaos on live TV

They say not to work with pets or children, but what are you going to do when the boss's child turns up on set?

Simon Cowell sweet four-year-old son Eric proved to be the real star of the show when he sat on his dad's lap during the live broadcast of Britain's Got Talent last week.

The cute Cowell was a bit shy about answering the host's questions, but as soon as attention turned to his dad, he couldn't help but upstage his famous father.

Grabbing hold of the mic, he proceeded to make funny noises and sounds, leaving his dad a bitt embarrassed, and the rest of the judges in fits of laughter.