The 'Morning Sun' singer refers to Ayda Field by the moniker because he feels as though he is married to her already.

Referring to the actress during an interview with UK station Heart Radio, he said: 'That Mrs. Williams over there, Ayda. Well as good as, eh babe?'

Robbie – who is believed to have got engaged to the American beauty at the end of 2009 - also revealed Ayda gets upset when she sees newspaper headlines claiming they are in no hurry to set a wedding date.

He added: 'We were reading some stuff and saw the headline 'Robbie Williams in no rush to get married'. I looked at her and she looked at me and the bottom lip started quivering.'

Despite Ayda's disappointment, the 36-year-old pop star says the newspaper report isn't entirely false when it comes to potential wedding dates.

He explained: 'It's not happening anytime soon. Sorry, it genuinely isn't. She's a bit gutted, a teeny, teeny bit.'