Brian De Lorenzo’s voice may take him all over, but his roots are firmly in Weymouth. The cabaret singer and musical theater actor, now living in Dorchester, grew up in a musical family, with his first “semiprofessional gig,” he said, coming at 9, performing with the Fine Arts Chorale in Weymouth.

“There was always music in the house -- my father was an amateur singer,” said De Lorenzo, one of five children. “We were friends with another large family, and we’d get together and sing concerts.”

De Lorenzo, whose day job is with the nonprofit Boston Senior Home Care, recently kicked off his latest original venture, “Come Fly With Me,” a tribute to Frank Sinatra, whose 100th birthday is Dec. 12. The tour started in Boston and continues in Puerto Vallarta in December, after a stint in New York City in November.

As a child, De Lorenzo went to choir school and performed at churches in Weymouth. As an older actor, he performed at the Company Theatre in Norwell. He enjoys the demands of both.

“In singing, I can choose any kind of material, where theater is a collaborative art,” he said. “They’re very different, bringing different kinds of satisfaction.”

He also performs for the Boston-based nonprofit Upstage Lung Cancer, which uses the performing arts to raise awareness and funding for research, he said.

De Lorenzo sings regularly in Boston, including at Scullers Jazz Club and Club Café, and also in New York, Provincetown, Chicago, and San Francisco. He has performed on cruise ships in Alaska and the Mediterranean, and has been thrice nominated for the Best Cabaret Show by the Independent Reviewers of New England. In 2001 he was named “Performer of the Year” by Talent America. His work can be seen at www.briandelorenzo.com.

He’s enjoying his current Sinatra tribute, he said, hoping to continue it in other venues next year.

Given his love of Sinatra, his family background might seem at odds with it.

“My parents weren’t big fans of Sinatra,” De Lorenzo said, with a laugh, about his mother and father, now living in Middleborough. “They didn’t have any of his albums in our house.”

Paul E. Kandarian can be reached at pkandarian@aol.com.