Ever wonder what's on your favorite celebrity's playlist?

Tonic.com a site that makes it easy for people to do good things everyday has the answer. They're auctioning off over 70 autographed iPods now through August to benefit Music Rising, a national campaign that replaces musical instruments to schools and churches destroyed by hurricanes in the Gulf Coast region. The best part: 100% of the auction proceeds benefit Music Rising.

Go online now to bid on Hillary Duff, Mandy Moore, or Scarlett Johansson's signed iPods with their favorite music already pre-loaded! Every week new iPods will be announced from legendary rock stars, supermodels, award-winning actors, billionaire icons, pro athletes, top fashion designers, and more.

Let the bidding war begin!

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