While the Jonas Brothers get older and venture out on their own, the eldest member of the clan, twenty-two-year-old Kevin Jonas finally tied the knot today in Long Island, NY to his fiancée Danielle Deleasa.

“It was gorgeous; it was really, really cold, but the snow was gorgeous. It looked like a winter wonderland,” a guest who attended the dreamy wedding tells OK!

Seventeen-year-old Nick Jonas, who recently started a solo band called Nick Jonas and the Administration along with brother Joe Jonas, 20, served as co-best men, while Kevin slipped a customized Jacob and Co. ring on his bride’s finger.

The wedding guest also tells OK! that the 400 person wedding set amidst a French Château venue was equipped with a fairytale forest princess theme.

Guests like Disney starlet Demi Levato, rumored to be romantically connected to Joe, were kept cozy in the snow under a heavily heated tented.

And as for the beautiful flowers – the trees had hydrangeas were draped in crystals which the guest reveals to OK! was “Danielle’s favorite flower made to look like icicles.”

As the two said their vows, Danielle, who is also from New Jersey like her now husband, was spotted crying.

Kevin met Danielle in 2007 and has been engaged since July of 2009.

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