Alicia Silverstone is magnificent in a lavish black gown designed by her friend Christian Siriano

Alicia Silverstone shares a kiss with a handsome mystery man after enjoying lunch in West Hollywood

Alicia Silverstone recreates hilarious Clueless scene with fashion designer Christian Siriano

Alicia Silverstone Can't Stop Reenacting "Clueless" Moments, And This Time, Christian Siriano Helped Her Out