It's been just two months since the third season of Married At First Sight Australia came to a close.

And despite an unhappy ending for all five couples, another 20 hopefuls have signed up to take part in the explosive social experiment in 2017.

A new teaser trailer has been released ahead of the fourth season and, as expected, it promises all kinds of drama, emotional outbursts, heartbreak and awkward encounters at the altar.

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That's a first! A new teaser trailer has been released ahead of the fourth season of Married At First Sight Australia and, as expected, it promises all kinds of drama

Twin brides: The blonde pair are shown briefly in the teaser - the two of them dolled up and supporting each other before they meet their mystery grooms for the very first time

Not only this, but the trailer also hints that there will be twin sisters taking part together.

The blonde pair are shown briefly in the teaser - the two of them dolled up and supporting each other before they meet their mystery grooms for the very first time.

The duo are wearing identical dresses, holding the same bouquets and have their hair styled in exactly the same way.

Regret? 'This is like my worst waking nightmare,' an anonymous bride says

Drama: A bride is also seen locking herself in a toilet cubicle before another says 'If he's totally different I think I'm going to freak out'

Stressful: 'Who the hell marries a complete stranger? What have I done?' Another questions

A bride is also seen locking herself in a toilet cubicle before another says 'If he's totally different I think I'm going to freak out.'

'This is like my worst waking nightmare,' an anonymous bride says.

'Who the hell marries a complete stranger? What have I done?' Another questions.

No luck: All five of the couples from season three broke up within a month after filming

Season three singles were unlucky in their quests for love, with all five couples ending their relationships within a month after filming.

One of the couples, Jess and Dave, called it quits before the show ended.

Not all seasons have been so unsuccessful however, with lovebirds Zoe Hendrix and Alex Garner from season one expecting a baby together.