Kiesza tops the charts and brings some star quality to an otherwise relatively low-key week full of shadowy dance DJs and the fanbase-powered chart overperformance of Elyar Fox. Other highlights are Paolo Nutini peddling a two-track sampler from his number 1 album, and Ed Sheeran celebrating his Hobbit hit's longevity by dressing up as Frodo Baggins (should have been Bilbo - we'll get letters).
Meridian Dan ft Big H and JME - German Whip
In at number 13
Elyar Fox - A Billion Girls
In at number 11
Ed Sheeran - I See Fire
Long Runner - Up 7 to number 43 after 15 weeks
DJ Snake & Lil Jon - Turn Down For What
High Climber - Up 32 to number 38
Shift K3Y - Touch
In at number 3
Showtek & Justin Prime ft Matthew Koma - Cannonball
In at number 29
Paolo Nutini - Scream (Funk My Life Up) / Iron Sky
Up 6 to number 22 / In at number 59
Kiesza - Hideaway
Straight in at number 1
PRESENTER: Kimberley Walsh
As another soulful house anthem crashes in at the top, Sigma rise to the challenge of standing out and bring a confetti carnival of dancers and singers to sell their smash. The Vamps are no less ebullient, and Paloma Faith is on imperious form as her song gets a second wind.
Katy Perry's rapping friend Juicy J is elsewhere, so Iggy and Charli seize the chance to add a sassy one-off rap of their own, freshening up Dark Horse in its 16th week on the chart. And there are entries from two much-loved veteran pop bands, the Saturdays and the Kaiser Chiefs, plus newcomer Tove Lo.
The Vamps - Last Night
In at number 2
Paloma Faith - Can't Rely On You
Up 17 to number 18
Tove Lo - Stay High
High Climber - Up 21 to number 12
Kaiser Chiefs - Coming Home
Up 14 to number 31
The Saturdays - Not Giving Up
In at number 19
Iggy Azalea ft. Charli XCX - Fancy
In at number 5
Katy Perry ft. Iggy Azalea & Charli XCX - Dark Horse
Long Runner - Up 1 to number 10 after 16 weeks
Sigma - Nobody To Love
Straight in at number 1
PRESENTER: JB Gill
There's a bit of movie magic this week as five voices from the Frozen soundtrack make the trip to celebrate four songs climbing the charts at once - an almost Glee-level achievement. That's not the only medley either, as French Montana flies in to perform his two hit rap features, throwing in a bit of freestyle and abetted by a body-poppin' Will.I.Am for the latter half. Elsewhere, John Legend is back and romantic as ever, and we also welcome global Latin superstars Shakira, Enrique Iglesias and Paolo Nutini (though Pitbull is busy being Mister Worldwide somewhere else). Finally at the top of the chart, Avicii's former shadow-dweller Aloe Blacc hits number 1 in his own right.
Enrique Iglesias - I'm A Freak
Up 2 to number 9
Paolo Nutini - Scream (Funk My Life Up)
In at number 12
John Legend - All Of Me
Up 3 to number 2
Shakira - Empire
High Climber - Up 36 to number 25
French Montana with Will.I.Am - Loyal / Feelin' Myself
Up 2 to number 13 / Up 4 to number 24
John Martin - Anywhere For You
In at number 7
Idina Menzel, Kristen Bell, Agatha Lee Monn, Katie Lopez and Santino Fontana - Let It Go / Do You Want To Build A Snowman? / For The First Time In Forever / Love Is An Open Door
Up 10 to number 17 / Up 19 to number 40 / Back in at number 56 / In at number 64
Aloe Blacc - The Man
Straight in at number 1PRESENTER: Duffy
Success for 5 Seconds of Summer, as well as another wave of assorted dance bangers by two or three people. We also have ballads! from Christina Perri, rock! (sort of) from Coldplay, and soul! from the arrestingly gifted MNEK, who performs a stripped-back version of his hit with Gorgon City. And friends of the show One Republic are back, this time romping through Counting Stars on banjos and jug.
FAUL & Wad Ad vs Pnau - Changes
In at number 3
OneRepublic - Counting Stars
Up 3 to number 19
Christina Perri - Human
Up 1 to number 16
MNEK - Ready For Your Love
Up 2 to number 24
Tujamo & Plastik Funk ft. Sneakbo - Dr Who
In at number 21
Coldplay - Magic
Up 3 to number 20
Martin Garrix & Jay Hardway - Wizard
In at number 7
5 Seconds of Summer - She Looks So Perfect
Straight in at number 1PRESENTER: JB Gill