Photo Credit: GinsburgSpaly
took the stage for a sold-out show in Perth, Australia on Friday night (November 6).
The "Gimme More" singer switched in and out of her skimpy costumes, dazzling fans as she ran through her Circus repertoire.
The concert comes amidst chatter about Britney's lip-syncing tendencies - which has reportedly led the Australian government to consider legislating measures requiring artists to notify fans that lip-syncing is part of the show.
Of Brit Brit's ways, a source told FOX Pop Tarts: “Whenever Britney has to dance she lip syncs, but she really prefers to sing live when she doesn't have to move around."
