The fourth season of Stranger Things has done wonders for the careers of Kate Bush and Metallica.

While Bush’s 1985 song ‘Running Up That Hill’ played a major role throughout the season, the metal icons had their own moment in the finale when their 1986 hit ‘Master of Puppets’ soundtracked a pivotal scene.

The sync allowed younger fans to discover Metallica’s music for the first time, and as a result the song has entered Billboard’s Hot 100 chart for the first time since its release 36 years ago, landing at No. 40.

Warning: minor spoilers

Fan favorite Eddie Munson plays ‘Master of Puppets’ in the Upside Down during the Season 4 finale, and Metallica couldn’t have been happier about the way their song was used.

“It’s an incredible honour to be such a big part of Eddie’s journey and to once again be keeping company with all of the other amazing artists featured in the show,” the band wrote in a statement.

The resurgence of “Running Up That Hill” was also remarkable.

In addition to breaking three Guinness World Records thanks to the sync, Bush also has earned at least $2.3 million in streaming royalties alone since the season premiere less than two months ago.