Countdown To The Summertime Ball: Follow Our #CapitalSTB Line-Up On The Road To Wembley

1. Naww, you guys! Avicii and Martin Garrix hang out before they hit the #CapitalSTB stage!

Clearly this pair are LOVING getting to hang out and reconnect this weekend. Bring it on, you two!

2. Fifth Harmony and Little Mix are bringing #GirlPower back to Wembley this year!

Little Mix revealed their new single 'Black Magic' this past week which has gone down a TREAT with all the #Mixers out there, and they've now gone and formed a fast friends with US girl band Fifth Harmony - who'll also be joining us at the Ball! Now THIS is a super-group we can get on board with. Picture: Syco Twitter

3. It looks as though the Little Mix ladies are rehearsing VERY hard for the Summertime Ball

The girls will be performing their new single 'Black Magic' for the FIRST time!

4. Meghan Trainor performed on her last night of her 'That Bass Tour'...next stop...

SUMMERTIME BALL! See you there, Meg! Picture: Getty

5. Nathan Sykes has been rehearsing hard ready to wow us with his HUGE performance

The 'Kiss Me Quick' star is ready for his first solo Summertime Ball set!

6. The lady's in London! And Kelly Clarkson CANNOT stop smiling! #BringItOn

In London. Picture Splash

7. Who's gonna be singing along with OMI to 'Cheerleader' this year?

8. Carly Rae Jepsen takes a "chill" moment... before the madness starts!

"Chill for 5 before the show. #Madrid

9. Jess Glynne is travelling EVERYWHERE this week... but she'll be at Wembley come Saturday!

"LON✈️LA✈️NYC✈️LON...

10. Oh, cheeky! Rita Ora cannot WAIT to be back on stage for us at Wembley Stadium

The 'Poison' singer has had a VERY busy week, and she's ready to put on one helluva show this weekend.

11. Ne-Yo is SO ready to show us what he's got at this year's #CapitalSTB!

Will you have your moves ready when this superstar arrives on that Wembley stage?

12. The Fifth Harmony girls look MORE than ready to party! They're in the country #Harmonizers...

The 'Worth It' five-piece stop off at Capital Birmingham for a visit with just DAYS to go before the Ball. Picture: Splash

13. Avicii is SERIOUSLY amped up for the #CapitalSTB after an amazing show this week

Picture: Instagram

14. 1D's Louis Tomlinson was in his comfy gear in LA... who's excited for 1D this weekend?

Picture: Rex

15. Rita Ora dropped her 'Poison' music video this week... who wants to see this one live?

Picture: Damon Baker

16. Trying out a new look for Wembley there, Olly?

Picture: instagram

17. Ariana is LOVING her time in the UK this week... hangin' out with Neville Longbottom!

"Neville, Luna and Sirius all in one photo. @msevylynch told me I'm the sweetest Slytherin she's ever met," Ariana tweeted, after meeting super-hot Matthew Lewis this week.

18. This NEEDS to happen! Kelly Clarkson sends Ariana Grande a message about meeting at the #CapitalSTB!

"@ArianaGrande Girl, if there is any way I can meet you with my 8 year old little boy #SummertimeBall #London I would love you forever :) He is in love with you! For real! He made this for you ha!" Kelly posted, alongside a picture her son's drawing. Picture: Instagram

19. The Rixton boys are WELL and truly warmed up after supporting Ariana Grande out on tour

"Good to be home. Good to be home." Rixton posted after Ariana's 'Honeymoon' tour gig this week. Picure: Instagram

20. Getting pumped up for the big day! Little Mix's Perrie Edwards heads to rehearsals

"Channelling sporty spice for dance rehearsals today! ✌️@melaniecmusic" Perrie posted alongside her outfit, with just DAYS to go before the big gig. Picture: Instagram

21. Rixton are rehearsing for pretty much the BIGGEST weekend of their lives

Not only are these four chaps performing in from of 80,000 fans at Wembley Stadium for the #CapitalSTB, but they're ALSO launching both their new single 'We All Want The Same Thing' AND their album 'Let The Road' that same weekend. We hope you're ready for this guys, it's going to be a big one! Picture: Instagram

22. Ariana Grande's in London, baby. Bring on the BALL!

While rumours surface of a brand NEW album called 'Moonlight' on the way from Ms. Grande, the lady herself is back in the UK capital all ready to make her first EVER appearance at the Summertime Ball. Wonder what Ari will be wearing when she heads out on that Wembley Stadium stage? Picture: Instagram

23. Rita Ora's ready to party... in between work on her 'Poison' music video of course

Everyone will be hoping Rita shows off her brand new single 'Poison' at the #CapitalSTB this weekend, and she's already confirmed this week that the sure-to-be-amazing music video for the track is coming very soon. Watch this space, #RitaBots! Picture: Instagram

24. Jason Derulo's been practicing his shirt rip... all ready for Saturday's big show!

Jason's been out in the Big Apple performing a New York City show this past weekend, and from the look of his abs there'll be more than a few swoons coming from the #CapitalSTB crowd if that sun comes out on Saturday. Picture: Getty

25. Nathan Sykes is celebrating the launch of his brand new music video... now bring on Saturday

The 'Kiss Me Quick' star shared some behind-the-scenes snaps online with fans this week, as he prepares to make his solo debut at our Summertime Ball 2015 with Vodafone. Picture: Instagram

26. The 1D boys look so relaxed... as they head to the BGT live finals one week before the big night

1D stars Niall Horan and Louis Tomlinson pose with BGT winner Jules and Matisse with just six days to go before they clearly #own at Wembley Stadium in their first Summertime Ball performance. The boys will be showcasing some of their biggest hits, and will all be nice and refreshed after each heading off on early summer hols for the past few weeks. Picture: Splash

27. Pitbull - as always - is fiered up and ready to jet across the Atlantic to join us at Wembley

The 'Time Of Our Lives' rap star performs a gig on stage at Universal Orlando Resort, filmed for The Today Show. He'll be MORE than ready to entertain 80,000 fans with his hits come Saturday. Picture: Getty

28. Niall and Louis from 1D get to know the lovely ladies from Fifth Harmony

It looks like they'll be a LOT of good vibes backstage at the #CapitalSTB this year, as not only are Fifth Harmony becoming good pals with Little Mix - but One Direction too! Picture: Instagram