JANET JACKSON: Unbreakable (Rhythm Nation)

HER mid-Eighties masterpiece Control set a sassy new template for R&B, but Jackson now follows the trends she led. Despite a reunion with producers Jam And Lewis, slinkier styles dominate, with lots of mellow grooves. There are shades of her brother Michael on Broken Hearts Heal, and a bracing cameo from rapper Missy Elliott.