Mary-Kate Olsen spills on her upcoming wedding

Mary-Kate Olsen's upcoming wedding to Olivier Sarkozy has been shrouded in secrecy from the beginning.

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Earlier this year, the pair sparked rumours that they'd already wed after they were spotted wearing matching gold wedding bands.

But it seems the couple are actually planning a Hamptons wedding in June, with a source telling People, "They're leaning toward a June event in the Hamptons ... (but they've) changed their plans a million times. Her family can't even keep up!"

While details about the actual day are scarce, Olsen can reportedly rest assured that her family are excited about the wedding, despite the couple's obvious age gap - Olivier is 18 years older than Mary-Kate, which initially caused her some concern.

"She wanted to make sure he would be good to her," said the source. "But Mary-Kate's family thinks Olivier is the best thing to happen to her. They love him."

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No word yet on what kind of dress Mary-Kate is planning on wearing, but there's no doubt she and twin sister Ashley will come up with something amazing.