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A track combining 'Kiss You' and the Australian's breakthrough hit 'She Looks So Perfect' appeared on YouTube recently.
It has been received well by fans and has seemingly satisfied the hunger of those who want to hear the two groups collaborate.
The bands meanwhile are currently taking a couple of days off from their Where We Are European tour before resuming it in Sweden on June 13.
Support act 5 Seconds of Summer haven't quite put their feet up just yet, with the quartet instead heading into the studio to record music.
news.mtv.it