Photo Dump: Nicole Kidman's Grey Hair

Nicole Kidman and husband Keith Urban showed up at a sporting event last night in their adopted hometown of Nashville, with Nicole sporting some serious greys. We find it surprising that a woman known for being totally obsessed with Botox her appearance would appear in public like this. Could this be a sign of a new, more-relaxed Nicole? Is Nashville the new yoga?

[Image via SplashNews]