Specifically, we’re talking about the track that Ryan (Tosin Cole) plays from “Sheffield’s sickest grime station,” with the aim of driving a horde of mutant spiders into a hotel panic room due to the creatures believing the song’s vibrations signal food (look it makes sense in the episode, we swear).
Well happily, we can put you out of your earworm misery and let you know that the track, which only has a small segment played on air, is Know Me From by Stormzy.
The appearance of the track (which was released in 2015) in episode four marks Stormzy’s Doctor Who debut as far as we can make out, following on from episode three’s use of Andra Day’s song Rise Up.
Here’s the full track for you to listen to and enjoy. Hopefully, it won’t attract too many eight-legged fans in real life…