The papers that sealed the deal for the groundbreaking pop video are going on the block.

A signed contract that laid out the requirements on the set of Michael Jackson’s ‘Thriller’ video is to be auctioned online this week, with a starting price of $25,000.

The document, which agreed terms between Jackson’s Optimum Productions and the Screen Actors Guild covering the two dozen actors in the epic 13-minute video, was signed by the pop star on October 10, 1983.

The video was shot in Los Angeles later that month and went on to win a Grammy for best video in 1984. In 2009, the Library of Congress added ‘Thriller’ to the National Film Registry, the first and so far only music video to be selected. [via Guardian]