Previously No.1 with debut single Cannonball (2011), follow-up Wings (2012) and Black Magic (2015), Little Mix score their fourth chart-topper with Shout Out To My Ex storming to the chart apex on sales of 95,273 copies (including 28,360 from streams), despite being on sale for less than five days.
It is only the third song thus far in 2016 to debut at No.1 emulating Major Lazer's Cold Water (feat. Justin Bieber & MØ) which did so in August, and Zayn Malik's debut solo hit Pillowtalk, which did so in February. Malik is allegedly the person being dissed in Shout Out To My Ex.
Their 17th hit in all and their ninth to make the Top 10, it is taken from Little Mix's upcoming fourth album Glory Days, and is the 42nd No.1 by an act or collection of acts to come to fame on The X Factor. The competition's 2011 winners, Little Mix dethrone 2012 winner James Arthur, whose Say You Won't Let Go ends a three week residency at No.1 by falling to No.2 - albeit on sales of 92,068 copies, the highest for a runner-up for 10 weeks.
Shout Out To My Ex is the ninth new No.1 to have emerged thus far in 2016 - the lowest number at this stage of any year since charts were introduced more than 60 years ago.
1 Little Mix 95,273 66,913 28,360
2 James Arthur 92,068
3 The Chainsmokers feat. Halsey 61,186
4 The Weeknd feat. Daft Punk 58,879
5 Hailee Steinfeld & Grey feat. Zedd 44,705
6 Sia feat. Kendrick Lamar 40,899
7 Ariana Grande feat. Nicki Minaj 39,799
8 Calvin Harris 39,397
9 DJ Snake feat. Justin Bieber
10 Bruno Mars 36,721