Urban croons to Kidman

Keith Urban reportedly sang about his true feelings for Nicole Kidman at a chilli-cooking contest in Florida earlier this week.

According the reports in Sydney, Australia's The Daily Telegraph newspaper, Urban opened his heart to the Moulin Rouge! Beauty during a touching rendition of the Brooks & Dunn song Brand New Man.

The track is an emotional story about a down-and-out drug addict whose life is transformed when he falls in love with the woman of his dreams.

With Kidman listening attentively, Urban crooned: "I used to love 'em and leave 'em, I'd brag about my freedom… then I met you, now my heart beats true. Baby you and me together, feels more like forever."

The celebrity couple have remained tight-lipped about their relationship ever since rumours of romance surfaced last year.