5 random chart facts of the week to keep you in the loop

Rockstars, bye-byes, thinking of Pink, and Alexandra Burke's ballroom in our chart highlights roundup

Another week, another chart – it's what we do! Here are five highlights of the latest chart to make sure you are fully up to speed!

1. Lonely climb up the ladder

Biggest jump up the chart this week belongs to Avicii and Rita Ora's contradictory collaboration Lonely Together. It vaults 11 spaces to break the Top 10 for the first time, at Number 10. It's Avicii's ninth visit there, with two of those going on to be Number 1s, and Rita's 10th. She's made it all the way to the top four times.

MORE: Look back at Rita Ora's Official Chart archive

2. Top of the rocks

Highest new entry goes to US rapper Post Malone, whose Rockstar, featuring fellow American rapper 21 Savage, goes straight in at Number 5. It's not the first song called Rockstar to chart. Two tracks already made the Top 10: Nickelback in 2007 and Dappy featuring Queen guitarist Brian May (yep, this really happened) in 2012. Both reached Number 2. If you consult your dictionary and decide  rockstar is actually two words – can you believe this is a thing, it's the same with "pop star" too – you'll find Pharrell-led N*E*R*D went to Number 15. As a special bonus, you'll also stumble across former Rolling Stone Bill Wyman's first solo hit (Si Si) Je Suis Un Rock Star, which reached 14 in 1981 and is quite something.

MORE: Look into the archive for every "rockstar"

3. Very good at goodbyes

Sam Smith scores another week at the top with Too Good At Goodbyes. Goodbye songs are pretty common in the Top 40, but Sam is only the third act to take one to Number 1. First were the Beatles (popular 60s boyband, you might have heard of them) with Hello Goodbye, which was Official Christmas Number 1 in 1967. Next was 90s girlgroup Spice Girls and Goodbye which – hey this is quite spooky – was also a Christmas Number 1, in 1998. It'd be a shame for Sam to break this "goodbye" tradition – maybe he'll stay Number 1 until Christmas! Only 13 weeks to go!

MORE: Every "goodbye" song that ever charted

4. Still thinking of Pink

Pink is in the Top 3 with What About Us, but exactly 15 years ago she was celebrating her first Number 1 as a lead artist when Just Like A Pill heaved Atomic Kitten's The Tide is High off the top spot. Just Like A Pill shifted 452,000 across physical, digital and streaming equivalent sales. It's been downloaded over 4,500 times this year so far and streamed 2.27 million times, proving it's one pill we still love to swallow.

MORE: Look back at the full Top 100 from this week in 2002

5. Strictly Burko

We love to dig into the archives to check how a vintage track is doing, and with Strictly Come Dancing live shows taking their first steps this weekend, we looked in on Alexandra Burke's massive Number 1 Start Without You. It topped the charts exactly seven years ago this week, and has sold 303,000 across all formats. 552 of you have pushed it out this year so far and downloaded it (29 this week), while, like a beast, Start Without You has notched up over 225,000 streams in 2017 – 7,825 this week.

MORE: Strictly 2017: Who's had the most cha-cha-chart success from Alexandra Burke, Aston Merrygold and Mollie King?

Got a chart fact you've been dying to know and wouldn't mind seeing us unravel right here? Tweet us using #ChartFact (funnily enough) and we might just pick yours!

Take a look at this week's full Official Singles Chart Top 100