The track is featured in the first couple of episodes (Picture: Netflix / youtube / katebushmusic)

*Warning spoilers ahead for episode four of Stranger Things*

Stranger Things season four made its long-awaited debut last Friday and it’s already made an impact on the music charts.

With the latest series – which is known for its 1980s nostalgia – hailed as the most bizarre yet, and being ‘out of this world’, the thrilling sci-fi follows a new ‘war’ for Eleven (Millie Bobby Brown) and the rest of the Hawkins gang, and, nearly three years since the last season, is just as scary as we’d expect, with a new gruesome villain known as Vecna.

Kate Bush’s 1985 single Running Up The Hill is played in the first episode and is featured heavily in the fourth episode titled Dear Billy.

Max (Sadie Sink) faces Vecna in a sinister trance, with Steve Harrington, (Joe Keery) Lucas Sinclair (Caleb McLaughlin) and Dustin Henderson (Gaten Matarazzo) desperately trying to wake her up.

After Dustin calls Robin Buckley (Maya Hawke) for help, she tells Dustin to play Max’s favourite song to help snap her out of the nightmare.

Max nearly suffered a deadly fate in episode four (Picture: Netflix)

Despite being the penultimate season of the hit series, the fourth series is actually the longest yet, with nine episodes across the instalment.

Volume I, which dropped on May 27, released seven episodes, and Volume II, due in July, will contain the final two.

Promising that the epic season will contain two feature length episodes, creator Matt Duffer teased: ‘[Episodes] seven and nine in particular are movies. And nine is a long movie.’

His brother Ross added that the latter ‘is over two hours’, as he promised The Wrap: ‘It’s a big one.’

Volume I dropped last week (Picture: Netflix)

The siblings explained they were initially going with eight episodes for the upcoming run, but they had too much to fit in.

Matt told Collider: ‘I think we were at least halfway, but I think probably over halfway through this season, were trying to squeeze the story in, and we sat down with our writers, and we said, “I don’t think this is feasible in eight episodes”.

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‘So we went to Netflix and said, “Hey, are you okay if we do one more episode?”, and luckily they were very supportive of that, but that’s how we ended up with that extra episode.

‘But it was not originally planned that way. It wasn’t outlined that way. It was always going to be eight. And then it just ended up being too much story.’

Stranger Things can be streamed in full on Netflix now with volume 2 coming out on July 1.

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