O'Day, a former Making the Band and The Celebrity Apprentice contestant, confirmed she's been romantically involved with DelVecchio, a former The Pauly D Project and Jersey Shore star, for a few months now, E! News reported.
O'Day and DelVecchio met while filming E!'s new reality showFamously Single, a relationship-rehab show for celebrities -- including The Bachelorette'sJosh Murray -- who struggle to find love and stay in lasting relationships, which is slated to premiere this spring.
"I didn't know that I would be as successful as I was with finding someone," O'Day told E! News. "So yeah, we met on the show. The show is about all of us coming together, dating, learning through a dating coach how to go out there and approach people that are better suited for us and kind of get over the issues that we were having."
The 31-year-old former Danity Kane singer continued, "And it ended up just like becoming like this chemistry happened within the house with a few of the castmates and Pauly and I were one of them. Which everybody always laughs I feel like people think we're completely different but ended up being pretty alike in a lot of ways."
O'Day explained she and DelVecchio "connect in a really interesting way" and have a "very funny" relationship. That's probably because she loves his wit.
"He's incredibly funny and smart and very talented," she said. "Pauly makes me stay in the moment and get out of my head. I'm so analytical and I have to assess risk everywhere I go and Pauly's taught me how to lighten up and enjoy life."
However, the couple isn't focused on labeling their relationship just yet, so they don't want to be called boyfriend and girlfriend.
"[Our] label is always 'enjoying the moment.' That's the label I feel comfortable with," O'Day laughed.
The pair is apparently headed off to the Caribbean for a romantic little vacation and then Las Vegas. In between DelVecchio's deejaying gigs, they'll celebrate O'Day's 32nd birthday as well as Valentine's Day.