Kurt Cobain was born on February 20, 1967. While he was only on their Earth for 27 years, he left an impact that is still felt today.

It’s because of that impact that when items of his go up for auction, they sell for massive price tags. In the past decade, Cobain memorabilia has seemingly become a subset of the entire celebrity auction market.

Want proof? Check out these six items that sold big at auction.