Why Does 'Mortal Instruments' Star Lily Collins Tweet As Clary Fray?

'It's really to feel like everyone's as involved in the process as possible,' she tells MTV News.By Eric Ditzian Lily Collins Photo: MTV News From the very minute news broke that Lily Collins had landed the coveted role of Clary Fray in the adaptation of the "Mortal Instruments" book series, the 22-year-old actress understood how key a role social networking would play in the project. "