Canadian singer/songwriter Sarah McLachlan [ tickets ] has filled in some scheduling gaps on her upcoming North American tour, which is now set to visit more than 30 cities.

Among the new additions to her itinerary are stops in New York City and the Canadian Maritimes; details are shown below.

McLachlan kicks things off in her homeland with a two-night stand in Victoria, British Columbia, on April 12-13, and she'll be on the road through at least early June.

The trek is the latest chapter in McLachlan's support for her most recent studio set, last year's double-platinum "Afterglow."

In November, McLachlan issued "Afterglow Live," a CD and companion DVD recorded during her summer 2004 tour. The DVD features 23 tracks, as well as music videos for three "Afterglow" cuts, while the CD houses 15 live songs.

McLachlan's 2004 tour marked the end of a five-year touring hiatus. She kept a low profile for several years in the wake of her mother's death from cancer in 1997 and the birth of her daughter India five months later.

McLachlan has won three Grammy awards over the course of her career, and has sold more than 25 million records worldwide, according to Arista Records. Earlier this month, "Afterglow" picked up a Grammy nomination for Best Pop Vocal Album. The awards ceremony takes place in February.

On Jan. 3, McLachlan is scheduled to perform "Push" on NBC-TV's "Ellen DeGeneres Show."