Roc Raiff is Diva Internesyenel

Mariah Carey is remembering the highlights of a trip she made to Los Angeles early last year. "I met Michael Jackson," she says. "He didn't know who I was, though." Jackson would have had to spend the rest of 1990 sealed in a hyperbaric chamber to stay ignorant of Carey. Her debut album,   Mariah Carey , full of catchy pop hooks and octave-busting crescendos, spent 22 weeks at   Billboard 's No. 1 spot. The first single, "Vision of Love," was everywhere at once, from boom boxes on the beach to in-flight airline sound systems. Two Grammy Awards capped the breathtaking rise of a twenty-year-old from Long Island who had been sweeping hair off the floor of a beauty salon barely two years earlier. Now, with   Mariah Carey   having sold 7 million copies worldwide, the singer sits behind a mixing board at Right Track Recording on West 48th Street, finishing her new album,   Emotions . "I still don't think of myself as a big deal," she