The singer and his gorgeous other half posed for a cute snap in the sunshine, while celebrating the nuptials of one of Nick's best pals.
In the picture, Nick and Olivia are each seen getting embracing the Hawaiian culture by wearing a garland of flowers around their necks.
They also appear to be welcoming the warm weather, as they are both dressed in appropriate outfits for the island wedding, with Nick rolling up the sleeves of his understated black suit and Olivia sporting a pretty floral frock.
Oliva, 21, is also working a trendy bright lipstick that we can't take our eyes off!
The couple watched as Nick's friend said his vows in an idyllic outdoor setting and later, Nick couldn't resist commenting on how special the day had been via Instagram.
He wrote beside a candid snap of the ceremony: "Seeing one of my best friends get married. #lifeisawesome".
The groom also acted as the Jonas Brothers' guitarist and music director before the group split up last year, so it's no surprise that Nick's sibling and ex-bandmate Joe was at the wedding too.
Last October, Nick, Joe and their brother Kevin shocked fans by announcing that they had disbanded and would not be releasing a new album.
And youngest member of the group, Nick, admitted that he'd been the one who initiated the break-up.
During an interview on Good Morning America, he explained: "I said I felt we'd had some complications in the group for a while without addressing them and the train will fall off the tracks without addressing some of the concerns and limitations we may feel as a group."
But despite the bump in his music career, the 21-year-old definitely appeared to be all smiles over the weekend.
And with former Miss Universe Olivia by his side, we can see why!
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