Teen People

Inside the Hottest Bash in Young Hollywood

Hayden! Miley! Hilary! See who stepped out in style for Teen Vogue's annual party

THE SWEETEST THING

Wearing J. Mendel, Emmy Rossum is all smiles and why shouldn't she be? The Poseidon star is set to release her first album. "It's called Inside Out," she tells PEOPLE. "I got to write the lyrics. It's very layered vocals, but also some piano vocals. It's just really exciting for me." Hear Emmy singing in her PEOPLE.com Video Diary!