Fellowbandmates were in attendance as Dorough, 34, married Leigh Boniello at in a traditional Catholic ceremony, People and OK! magazine reported on their Web sites.
"The wedding took place as planned and all went well," attorney Jason L. Turner said in an e-mail to The Associated Press.
Dorough, also known as Howie D, proposed to his girlfriend of six years last New Year's.
"She wasn't expecting it, and I was quite nervous — more nervous about proposing to her in front of 40 family and friends than about performing in front of 40,000 people onstage," Dorough told People earlier this year.