'Amnesia' hitmakers 5 Seconds Of Summer have predicted that Ashton Irwin will probably be the first member of the band to tie the knot because he's the most mature. 

During a new interview with Virgin Radio, the guys played a quick-fire 'getting to know you' round and they were asked which member they think will be the first to get married, to which they all replied it will be drummer Ashton Irwin. 

A surprised Irwin said: "Really? I don't know, I think I'm that guy - I'm the relationship guy!"

Member Luke Hemmings then explained his answer, adding that Irwin's advantage of being older means that they all look up to him as being more mature: "You know what it is, you're more emotionally stable because you're older than us. Even though it's by just like one year or two years."

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Watch the interview in full here: