Former "Beverly Hills, 90210" stars Tori Spelling and Jennie Garth are reuniting for a new ABC Family comedy called "Mystery Girls," the New York Post reported. Spelling, 40, and Garth, 41, will play former starlets from a 1990s detective TV show who team up for a real-life mystery when a witness to a crime insists on speaking only to them, the newspaper said. The half-hour show is to premiere this year.