Keith Urban may look good in his shirt, but he wants you to have it. The country superstar is hosing the 'You Look Good in My Old T-Shirt Auction,' to benefit St. Jude Children's Research Hospital.

Urban has recruited several Nashville friends, including Dolly Parton, Brad Paisley, Carrie Underwood, LeAnn Rimes and Trace Adkins, to donate their old t-shirts to the cause. Each shirt is autographed by its famous owner and is being auctioned off on KeithUrbanAuction.com.

Fans can also bid on a blouse worn by Faith Hill, a sweater worn by Sara Evans and Dwight Yoakam's cowboy boots.

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