Mick Jagger's girlfriend of over a decade, L'Wren Scott, a noted fashion designer, was found dead of an apparent suicide on Monday.

The Rolling Stones' scheduled concert Wednesday in Perth, Australia has been cancelled following the tragic news.

According to cnn.com:

Scott's assistant found the designer hanging from a door knob with a scarf around her neck, the official said.

There were no signs of forced entry, and police did not find a suicide note, the official said.

Jagger had been dating L'Wren since at least 2003 and as would be expected, a spokesman for Mick Jagger said that the singer was completely shocked and devastated by the news.