Little Mix's Shout Out To My Ex is on course for a third week at Number 1 in the UK

Plus there are new entries from Louisa Johnson and Jonas Blue in this week's Official Chart Update.

Little Mix are on track to extend their reign at the top of the Official Singles Chart this week.

Shout Out To My Ex – the lead single from the group’s upcoming album Glory Days – is refusing to budge from the top spot in today’s Official Chart Update and could be set for a third week at Number 1.

Little Mix’s closest competition is James Arthur’s Say You Won’t Let Go, which holds at 2, and Clean Bandit’s latest single Rockabye, which has jumped four places to Number 3.

New entries and high climbers

Bruno Mars leaps back into the Top 10 today with 24K Magic following his performance on The X Factor results show. The song is currently Number 6, which could be a new peak for the song if it holds its position until Friday’s Official Chart reveal.

Drake is zooming back up the Top 40 this week, this time with Fake Love – the trailer single for his new album More Life which is out in December. Up 28 spots to Number 9, it could become the superstar’s eighth Top 10 this Friday.

Further down, producer Jonas Blue starts at Number 17 with his brand new single By Your Side, and X Factor winner Louisa Johnson opens at 20 with So Good.

Finally, two spooky songs are surging up the Official Singles Chart as the UK celebrates Halloween. Michael Jackson’s Thriller re-enters at 42 on today’s update, a sales uplift of 165% from last week, and the theme from the Ghostbusters movie is at 77 (a sales uplift of 107% from last week).