Melbourne, (ANI): Britney Spears will reportedly hit the Australian roads without her sons. The pop princess, who recently finished the latest US leg of her 'Circus' world tour, was to head Down Under with sons Sean Preston, 4, and Jayden James, 3, to perform another run of dates, reports News.com.au.

But the singer will be stepping in the country without the kids after her former husband, Kevin Federline, with whom the youngsters were supposed to arrive, purportedly postponed his trip. Federline was said to be busy with filming commitments with the reality show 'Celebrity Fit Club'. Britney may now not see her lads until the middle of next month.