Shia LaBeouf says getting married was "the best thing he ever did for himself".

Shia LaBeouf

Shia LaBeouf

The 30-year-old actor - who tied the knot with Mia Goth at a ceremony in Las Vegas last month - insists he has always been the kind of guy who likes to make a commitment.

Asked how married life is, he said: "I love it, man. That's one that's not been a f**k up, that's been the best thing I ever did for myself.

"I'm like a serial monogamist. I think it's cause I'm deeply insecure. Once you get vulnerable with a person, that's it. I've never been a one night stand guy."

The 'Transformers: Dark of the Moon' star certainly doesn't regret his decision to get hitched because he knows Mia is the one for him.

Speaking to host Sway Calloway on his Sirius XM radio show, Sway in the Morning, he shared: "I think I was after something real substantial this time, I'm 30-years-old. And you know when you know."

The couple tied the knot at the infamous Viva Las Vegas Wedding Chapel in the resort city at a ceremony officiated by an Elvis impersonator.

In a video posted online, he told the couple: "Mia and Shia, do you promise to adopt each other's hound dogs? Not to wear your blue suede shoes in the rain? To always be each other's teddy bear?

"And to give each other a hunka hunka burning love? Promise? Alright, well by the power invested in me - The King - I now pronounce you to be man and wife. Now Sir, you may kiss your lovely bride."

The pair first met on the set of 'Nymphomaniac: Volume II' in 2012 and they have been dating on and off ever since. Speculation about their engagement was fuelled in March earlier this year when Mia appeared at Paris Fashion Week with a ring on her finger.