Well, no one saw this coming a few weeks ago.

1. Kate Bush – “Running Up That Hill”

Climbing to number one in its third week on chart, though it would have been there last week if it wasn’t for the fact that it’s an archive record whose streams are given lower weighting than new releases. Harry Styles’ “As It Was”, which drops to number 2 this week, is on its eleventh week of release and may have been hit by the downweighting rule this week too – but for once, that would just restore a level playing field. (EDIT: In fact, the chart compilers allowed Kate Bush’s label to invoke the “exceptional cases” rule and have the track treated as a new release – but Harry Styles’ sales haven’t been falling long enough for him to get hit by downweighting, so both tracks still remain on a level playing field.)

This is Kate Bush’s second UK number one, the first being her debut “Wuthering Heights” in 1978. “Running Up That Hill” reached number 3 on its initial release in 1985. This allows the chart company to claim a string of unlikely records for her. It’s the longest ever gap between number 1 singles by the same artist, at 44 years – the previous record is 42, held by Tom Jones. Mind you, he did it with two original records. But then again, the second one was a guest appearance on a Comic Relief single (“Barry Islands in the Stream” by Vanessa Jenkins & Bryn West featuring Tom Jones and Robin Gibb, from 2009). The record for the longest gap between number ones going purely by new releases for an active artist is held by Kylie Minogue, who had no number one hits between “Tears on my Pillow” in 1990, and “Spinning Around” in 2000, even though she kept having hits throughout.

It’s the longest gap between a single entering the chart and reaching number one, at 37 years. The previous record is 36 years, held by Wham!’s “Last Christmas”, which finally managed a week at number one in the post-Christmas lull during the streaming era. The record for doing it properly, with a slow climb to the top in a single run, is 19 weeks, held by Ed Sheeran’s “Thinking Out Loud”.

It also makes Kate Bush the oldest woman ever to have a number 1 single, though again this is all a bit artificial when you’re dealing with back catalogue material. The previous record holder is Cher, based on “Believe”; she was 52. For men, the record is irritatingly held by Sir Tom Moore’s charity version of “You’ll Never Walk Alone” – he was 99 – or, if you confine yourself to regular artists, Elton John, based on “Cold Heart” last year. He was 74. But… that was a remix of older material, so maybe you want to fall back on Tom Jones’ Comic Relief single again. He was 68. Kate Bush is currently 63.

Kate Bush doesn’t often authorise her material for soundtrack use, but apparently she really likes Stranger Things. That said, it’s not like she never grants licenses. She signed off on this, after all. She’s even in the video, which incorporates clips from the video for her original song, “Cloudbusting”.

18. D-Block Europe & Ghost Killer Track – “Elegant & Gang”

Ghost Killer Track is a French producer, and this is his first credited hit. This is the point where I usually say that D-Block Europe just keep making the same track, but this is actually pretty good. It’s not a drastic change of direction or anything, but I kind of like it.

27. BTS – “Yet to Come (The Most Beautiful Moment)”

This is one of the three new tracks on their greatest hits album “Proof”, which enters at 8. One of their better singles, I think, even if the title is slightly ironic from a band who’ve just announced a hiatus.

28. OneRepublic – “I Ain’t Worried”

Another Top Gun soundtrack song – a film so 80s that it can actually produce hit singles. OneRepublic haven’t had a top 40 hit since 2016. This reminds me strangely of “Young Folks” by Peter Bjorn and John.

31. Joji – “Glimpse of Us”

Joji is a Japanese singer who’s been around for a while and has missed the top 40 a couple of times in recent years. The song itself is a straightforward ballad (and quite a good one), but the video is very unusual and worth a play.

40. Sigala & Talia Mar – “Stay The Night”

Debut hit for Talia Mar, who’s hitherto been more successful as a YouTuber than a singer. It’s much what you expect from a Sigala track.

This week’s climbers:

• “Afraid to Feel” by LF System climbs 13-4.
• “Green Green Grass” by George Ezra climbs 9-6 on the back of the parent album “Gold Rush Kid” entering at number 1. It’s his third album, all of which have gone to number one. The previous single “Anyone For You” also re-enters at 22.
• “Crazy What Love Can Do” by David Guetta, Becky Hill & Ella Henderson climbs 14-12. It’s taken nine painfully slow weeks to climb from its entry point at number 20.
• “21 Reason” by Nathan Dawe featuring Ella Henderson climbs 17-14.
• “Je M’Appelle” by Benzz climbs 22-17.
• “Potion” by Calvin Harris, Dua Lipa & Young Thug climbs 20-19.
• “Last Last” by Burna Boy climbs 29-20.

That’s five new entries and one re-entry. The six tracks making way for them are:

• “Baby” by Aitch featuring Ashanti, which got to number 2.
• “Balling” by Vibe Chemistry, which has spent 12 weeks hovering between 35 and 42.
• “10 Things I Hate About You” by Leah Kate, which managed six weeks on chart but never got above number 30.
• “1989” by Aitch, more of a promotional single, which got to 23.
• “Die Hard” by Kendrick Lamar, Blxst & Amanda Reifer, an album track which peaked at 7 and actually stuck around for four weeks.
• “Lemon Tree” by Post Malone, an album track that managed a week at number 40.

On the album chart, “Gold Rush Kid” by George Ezra is number 1.

4. Chase & Status – “What Came Before”

Chase & Status are in the post “having hit singles” phase of their career, but this is their fourth top 10 album. Since its predecessor only got to 12 (and was their first album to produce no hit singles), they’ll probably be happy with that.

Number 8 is “Proof” by BTS, but we’ve had that.

23. XXXTentacion – “Look At Me – the Album”

His third posthumous album, though this one is a compilation. The single, “True Love” (with Kanye West), got to number 31 a couple of weeks ago. The previous posthumous XXXTentacion album, “Bad Vibes Forever”, missed the top 40 in the UK, though releasing it just before Christmas may have been a mistake in the UK market.