Ever wonder what a vintage rock T-shirt might be worth? A mind boggling $10,000 if it's one of the rarest rock T-shirts in the world!

The story is that an extremely limited quantity of special T-shirts were made to replace conventional backstage passes for one of Led Zeppelin's legendary 1979 Knebworth House concerts. This past week, one of those Zep shirts — perhaps the only one still in existence — sold on eBay for $10,000! The buyer, who is located in Australia, declined comment.