Britney Spears’s “Circus” tour, her first major tour in five years, has encountered a few obstacles in Australia. After a show in Perth on Friday night, Australian media reported that some of the 17,000 fans in attendance stormed out after Spears lip-synched a few but not all of her songs. The Spears camp countered that the lip-synching element of the show was never hidden and that no fan would leave after paying between $200 to $1,500 for tickets. Plus, isn’t the onstage train wreck element kind of part of the show? You can’t leave. You can barely look away. [Reuters]