Welcome to Billboard Pro’s Trending Up newsletter, where we take a closer look at the songs, artists, curiosities and trends that have caught the music industry’s attention. Some have come out of nowhere, others have taken months to catch on, and all of them could become ubiquitous in the blink of a TikTok clip.

This week: The biggest synch show of the 2020s is back at full power with a new spate ’70s and ’80s classics to boost, while a dance challenge puts a Louisiana rapper on the national radar and an ’00s alt-folk duo sees a maybe-seasonal revival.

Feeling ‘Stranger’ Every Day: Season 5 of Netflix Smash Nets Huge Gains for Soundtrack Songs

It’s been about as highly anticipated as any season of television this decade, and as of Thanksgiving, it’s officially underway: Stranger Things,

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