Tori Spelling announced that she is heading back to work with former Beverly Hills, 90210 costar Jennie Garth. The news follows a troubled week with husband Dean McDermott. This is not the first project the former co-stars have worked on together since their hit Fox series ended in 2000. The close friends costarred in 2014?s Mystery Girls, where they played former ?90s actresses, who come together to solve mysteries.