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In the market for a Taylor Swift-signed guitar? How about The Walking Dead issue 1 comic book signed by cast members? Welcome to the Hungerthon 2012 auction, where fans can bid on these items and more to aid WhyHunger's hunger and poverty relief.

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The Hungerthon is WhyHunger's annual campaign and radio broadcast. This year they hope to raise over $850,000 to make a difference in the lives of the 1 billion people worldwide struggling to eat.

Other notable items up for auction include a Carrie Underwood-signed guitar and CD, a Mumford & Sons-signed guitar, a Jason Aldean-signed football, a Willie Nelson-signed guitar, a P!nk-signed guitar, Kelly Clarkson-signed guitar and a Rita Houston in-studio experience.

Click here to join the bidding, which went live today. New items will be added over the next few weeks.