The band’s single from their self-titled EP jumped to No.1 from outside the top 10, climbing 17 places.
After 12 broken weeks at No.1, Williams’ highly successful hit Happy is down to No.2 for a fourth time.
Clean Bandit with Jess Glynne also fell a spot to No.3 with Rather Be, while Sia moves up six places to a new peak of No.4 with Chandelier.
Two more artists climbing to new peaks are Peking Duk with High and Calvin Harris with Summer, both up two places to No.5 and No.6 respectively.
The last Aussie act to hit No.1, 5 Seconds of Summer are down three places to No.7 with She Looks So Perfect. Gabrielle Aplin’s The Power of Love slides from No.5 to No.8 while David Guetta and Skylar Grey with Shot Me Down does the same (No.6 to No.9) and tumbling seven places to No.10 are The Chainsmokers with #SELFIE.
INXS retain the No.1 album spot for a seventh week with their collection, The Very Best, the band’s longest-running No.1 album.
Local act Ball Park Music’s Puddinghead is the highest new entry at No.2. Another local artist to debut high is Dan Sultan, whose third album Blackbird is at No.4, becoming his first top-10 placing.
The Frozen soundtrack holds at No.3, and also steady at No.5 is Williams’ G I R L, thanks to the new single Marilyn Monroe going to radio.
Back up a place to No.6 is Prism for Katy Perry, while Johnny Cash drops three places to No.7 with Out Among the Stars. London Grammar rise a place to No.8 with If You Wait and Skrillex drops three places to No.9 with his Recess album.
John Butler Trio’s Flesh & Blood round out the chart by keeping their No.10 spot from last week.