Pop superstar Justin Timberlake is adamant he will never take a job on a Tv talent show.

The SexyBack hitmaker's ex-girlfriend Britney Spears recently quit her role as a judge on America's The X Factor, leaving a vacancy on the show's panel.

However, when questioned about the job during an interview on Britain's Capital Fm, Timberlake ruled himself out of ever signing up for a reality Tv stint.

He says, "I could never do that. I'd feel too bad, you know, to tell someone (a contestant) no. And it's obvious when someone's not good. But I just don't have the heart (to do it)."