Sia's Still Sitting At Number 1

The mysterious singer Sia holds on to her Number 1 position on the singles chart.

'Cheap Thrills', featuring Jamaican dancehall and reggae pop artist, Sean Paul, is taken from Sia's seventh studio album, entitled This Is Acting. The No. 1 track has been on the Irish Singles Chart for 7 weeks, retaining her spot over Mike Posner's 'I Took A Pill In Ibiza' from the top spot.

'Cheap Thrills' was originally written by Sia and Greg Kurstin for Rihanna, but the pop star rejected the track. It's worked out very well for the wig-wearing artist, as she entered the top 10, 19 times, in 19 different countries around the world.

American five-piece girl group Fifth Harmony, move up the chart to No.3 with 'Work From Home'. At No.4 is 'Lush Life' by Zara Larsson and Lukas Graham's '7 Years' falls to No.5.