Rolling Stones, L'Wren Scott (inset)

The Rolling Stones were set to launch a six-concert Australian tour Wednesday, but have postponed the show after the death of fashion designer L'Wren Scott, who was the longtime girlfriend of Stones frontman Mick Jagger.

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"The Rolling Stones concert in Perth will not be going ahead as scheduled forWednesday 19 March 2014," the band tweeted Tuesday. "No further info is available at this time, ticket holders are asked to hold on to their tickets until a further update is available."

Scott, who designed dresses for outlets including Barneys and Banana Republic, was found dead of an apparent suicide in her Manhattan apartment Mondaymorning. She and Jagger had been an item since 2001.