The American pop queen - who has had more than her fair share of sensational headlines - touched down at Sydney airport just after 6am (AEDT) today. "Longest flight ever but we had a great time ... So excited to be here," Spears said on Twitter after arriving.
Her worldwide Circus tour - with a cast of 44 dancers, magicians, clowns and acrobats - opened in New Orleans in March. She will perform 15 concerts in Australia, starting in Perth on Friday, followed by Melbourne, Sydney and Brisbane before finishing in Adelaide on November 29.