Apparently, vintage concert t-shirts are the new baseball cards in the world of collecting. Recently, this ultra rare Led Zeppelin t-shirt sold on eBay for $10,000... after the seller bought it for just $123!

Kyle Ermatinger actually felt he paid too much for the shirt when he shucked out $123 to buy it. However, one thing that makes the shirt so valuable is  that it was used by the band at Knebworth Park as a wearable backstage pass back in 1979.

As his luck would have it, the t-shirt he bought turned out to be the most sought after Led Zeppelin t-shirt ever, and subsequently is the highest priced shirt ever sold on e-bay!