Down-in-the-dumps Keith Urban has been singing the blues to his buddy Blake Shelton in the wake of his messy split from Nicole Kidman , RadarOnline.com can reveal.

"Blake is the veteran of two failed marriages himself, and he's learned how to survive a divorce, especially one that plays out in the public eye like Keith's appears to be doing now," said the insider.

The pair has grown close while working together on CBS ' new music reality show, The Road . Article continues below advertisement

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"Blake understands from the guy's perspective and he's letting Keith know he'll have tips and support to offer," the source ad

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