Melissa Joan Hart Say Britney Spears ‘Was A Pro’ As A Guest Star On ‘Sabrina The Teenage Witch’

90’s Con brought back the cast of “Sabrina the Teenage Witch” and they finally cleared the air on what happened to Salem the cat. Melissa Joan Hart also revealed what it was like working with Britney Spears on the hit teen sitcom. “She was a pro,” she said. “It worked every time, she knew what she was doing, she was playing herself…I feel like it was an easy breezy kind of scene” she said.