The singer will release 'Be a Boy' on March 11 as the third cut to be lifted from his recent album Take the Crown.
The song was co-written by Williams with Tim Metcalfe and Flynn Francis and produced by Jacknife Lee.
Meanwhile, Williams has been nominated for a Brit Award for his chart-topping 2012 single 'Candy', which has sold over 500,000 copies in the UK.
"Really chuffed that 'Candy' has made it into the 'Best Single' nominations at this year's Brits," Williams said.
Copyright: Rex Features Sadaka Edmond/SIPA"I've been coming to the show for so long, its great at this point to have a song recognised from Take the Crown. I'll be there on the night, it's always fun."
Williams will embark on a ten-date stadium tour of the UK later this year, starting at Manchester's Etihad Stadium on June 18.
Listen to Robbie Williams's new single 'Be a Boy' below: