Guy Sebastian's 'priceless' act for Aussie couple leaves wife Jules 'crying'

He’s known as one of the biggest singing sensations in Australia but Guy Sebastian took time out of his busy schedule to make one Aussie couple’s night one they’ll never forget.

The 42-year-old Battle Scars singer boarded a Sydney harbour boat and hid downstairs, just so he could surprise one very shocked woman right after her engagement.

Nathan, a listener of the Kyle and Jackie O Show enlisted The Voice judge hitmaker to help him make his engagement one for the books.

In a video posted to the KIIS FM radio show’s Instagram page, Guy can be seen hiding downstairs on the boat, excited about surprising Nathan’s girlfriend Steph, who is a music teacher and absolutely loves Guy’s work.

“I am about to surprise a couple who are about to get engaged on this boat. Their names are Nathan and Steph. They've been together for about six years now. Nathan has been planning this for quite a while and he got in touch with KIIS to see if we could make it extra special for them,” Guy whispered at the start of the video.

“Hopefully Steph will say yes and then I'll be popping up and singing a stripped-back version of my song I Chose Good."

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The camera then shows Nathan getting down on one knee and producing a ring, with Steph looking delighted.

Not missing a beat, Guy appears from below deck and starts singing his smash hit son, with Steph’s jaw dropping to the floor.

Fans gushed over Guy in the comments section of the video, with his wife Jules Sebastian even commenting: “I’m crying 😭 Congrats Nathan & Steph!”

KIIS FM and Life Uncut podcast host Brittany Hockley commented: “Can I put my pop star order in now for possible future engagement…”

“That is just priceless! You are such an amazing human, Guy! To give someone such a fabulous special occasion that they will treasure forever! You are such a legend! 💗” a fan wrote.

Other fans said: “Goosebumps that is so awesome” and “Oh my, I'm crying! @guysebastian you are amazing! 🫶🫶🫶”

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