Official Chart Update: Sia giving Mike Posner a run for his money in this week's Official Singles Chart.

Mike Posner is facing some serious competition from Sia on this week’s Official Singles Chart.

The singer-songwriter’s current reigning Number 1 I Took A Pill In Ibiza is leading the way on today’s Official Chart Update, but Sia’s Cheap Thrills continues to surge up the Top 40, up two places to Number 2.


Cheap Thrills has already given Sia her biggest UK chart hit as a headline artist – can she land her first headline Number 1 by this Friday? The Australian star previously reached the summit as a guest on David Guetta’s Titanium in February 2012. Click here to check out her full UK chart history.

Meanwhile, Fifth Harmony’s Work From Home slips from 2 to Number 3, Lukas Graham’s 7 Years is at 4, andZara Larsson’s Lush Life completes the Top 5. 

The Version