For the fashionable feast, The Mortal Instruments: City of Bones starlet suited up in a black Altuzarra blazer with plunging neckline and sheer chiffon paneled skirt, which had her looking sophisticated and mature.
You'd never guess that she's only 24-years-old!!
Lily accessorized her look with a gold clutch, Gianvito Rossi for Altuzarra satin clogs, and styled her bob into sassy waves.
[Image via AP Images.]