Quebec singer Celine Dion’s latest album, “The Colour of My Love,” has been certified triple platinum in Canada — signifying sales of 300,000 units — less than three weeks after its release, making it one of the fastest-selling Canadian records ever. In the U.S., the Sony release has shipped more than 500, 000 copies.Dion’s last English-language disc, titled “Celine Dion,” sold 2.5 million copies around the globe, including more than 1 million in the U.S. It featured the Academy Award-winning song “Beauty and the Beast,” from the hit animated Walt Disney film. The Montreal performer’s French-lingo platters made Dion a major star here in Quebec while she was still a teenager, but the 25-year-old singer switched to English in just the last few years. Dion’s adult-contemporary, ballad-heavy style has led to frequent comparisons to Whitney Houston and Mariah Carey, but manager Rene Angelil thinks his artist is anything but a carbon-copy of those stars. “She’s got her own style,” said Angelil. “If it was the same thing, people wouldn’t buy her records.” “It’s a compliment because they’re very talented,” says Dion. “But I’m just trying to be myself.” Dion will launch her first-ever headlining tour of the U.S. with a 10-city jaunt next February, visiting 1,200- to 1,500-seat venues in major markets like New York, L.A. and Chicago. That will be followed by a coast-to-coast Canadian tour from March to June. Canadian web CTV will broadcast “The Colour of My Love,” a one-hour TV special produced by Toronto’s Paragon Entertainment, on Sunday. The show is also set to air on the Disney Channel in early 1994.