Nicholas Laroche is on stage at St. Jude’s Parish Sunday.

For a guy who grew up listening to Jethro Tull and AC/DC, Nick Laroche has undergone a radical change in his musical tastes. The 23-year-old baritone spent his college years singing Baroque music and is now working on a graduate degree in opera at McGill University, in Montreal.

Sunday, you can hear him in a program of music from the musical theater at St. Jude Parish, in Lincoln. Proceeds from the event will go to pay for his schooling and to benefit St. Jude Children’s Research Hospital.

Laroche, who grew up in Woonsocket, came early to singing. His parents noticed he could carry a tune when he was about five and by the time he was seven he was taking voice lessons. As a youngster he did some auditions in New York for shows such as Les Miserables. But he didn’t really have a voice for musical theater.

“I was never a belter,” he said.

It was his teacher, Cranston baritone Rene de la Garza, who pointed out that his voice was probably better suited for the classics, and once Laroche began listening to Bach, Beethoven and Mozart, he became hooked.

He got a chance to sing a lot of that music at the University of New Hampshire, where he was a founding member of a five-voice Baroque choir called Quinto. In his junior year, he spent six months in Vienna, Austria, studying art song and opera.

Locally, Laroche has been a cantor at St. Jude and he has sung with Pierre Masse’s Ecclesia Consort. Last year he was bass soloist for the Ecclesia’s performance of the Bach Magnificat. At the same time, he put on a program of English art song at St. Jude that drew about 350 people.

But he has decided on lighter fare for Sunday’s concert, which will include a blend of jazz standards, musical theater favorites and spirituals. Selections include “Some Enchanted Evening,” “The Impossible Dream,” “On the Street Where You Live” and “Blue Skies.”

The concert takes place Sunday at 6 p.m. at St. Jude Parish, 301 Front St., Lincoln. Tickets are $10 at the door.