Scott Mills sits in for Jameela Jamil and chats to The Script and Duke Dumont on the way.
Listen or watch as Jameela counts down the Top 10 to reveal the UK's new Official No 1.
Union J are in the studio, Wankelmut checks in from Berlin and David Guetta goes to #1!
Kiesza checks in from New York, Rizzle Kicks chat to Scott & the race for Number 1 is on!
Nico & Vinz check in from the States as they battle OneRepublic and MAGIC! for No 1.
Jameela chats to Bars & Melody and Melissa Steele as they battle Cheryl Cole for No 1!
Charli XCX joins Jameela, we catch-up with Magic! and go on a Union J video shoot.
Rixton and Nicole Scherzinger take on Will.i.am in the race for No 1.
The Vamps leave a video message as they battle Will.i.am for Number 1.
Ariana Grande makes Chart history by getting the UK's first #1 based on sales AND streams
Example drops by and Jameela calls up Oliver Heldens and Ed Sheeran.
5 Seconds Of Summer chat to Jameela plus Ella Henderson makes it two weeks at the top!
Ella Henderson joins Jameela as she tops the Official Chart for the first time
Ed Sheeran tops the Official Chart for the first time!
Jameela is joined by SecondCity and Klingande call in for a video chat.
Rita Ora joins Jameela to find out if she can knock Mr Probz of the top spot!
Foxes joins Jameela in the studio to help reveal the new Top 40.
Jameela catches up with Calvin Harris as he finds out he's the UK's Official Number 1
Mr Probz and Neon Jungle join Jameela in the studio and Cash Cash check in from America
Jameela reveals the UK's most downloaded tracks of all time!
Kiesza and Shift K3Y join Jameela to find out where they've landed in the Official Chart
Both Sigma and The Vamps join Jameela as they battle to be the UK's Official Number 1
Aloe Blacc tops the Official Chart to get his first ever solo UK Number 1!
5 Seconds of Summer join Jameela to find out where their single lands in the chart.
Duke Dumont & Jax Jones join us in the studio to find out if they have managed a #1!
DVBBS & Tinie check in to celebrate their number 1 record!
Coldplay, Lily Allen & Route 94 all have top 10 new entries, but who got number 1?
Foxes and Tiesto both find out they've gone Top 10 plus Pharrell returns to the top!
Sam Smith joins Jameela to find out if he's the UK's Official Number 1
Le Youth videochat plus Clean Bandit make it four weeks at the top with 'Rather Be'.