Mary Lambert & Wyatt Paige Hermansen

After four years of dating, Mary Lambert and her partner Wyatt Paige Hermansen wed before 150 guests in Oakland, Maine on Oct. 22.

The “Same Love” singer and Hermansen, a professor who uses they/them pronouns, tied the knot in an outdoor ceremony at Enchanted Gables. The newlyweds then celebrated with a reception held in a barn on the grounds.

“We didn’t want it to look like anybody else’s wedding,” Lambert told PEOPLE. “We really want it to be us. We wanted to be the wedding that people look at and say, ‘I want to do that.'”

For the big day, Lambert wore a “sparkly” Essense of Australia dress that she picked out at Kleinfeld in New York City which was documented for an episode of the TLC series Say Yes to the Dress.

Hermansen got their suit from a Brooklyn-based company called Bindle & Keep, which specializes in custom-tailored suits for gender-nonconforming clients.