It’s one of the most anticipated films of the season, and last night (August 12) “The Mortal Instruments: City of Bones” held a star-studded premiere in Los Angeles.

“Rock of Ages” hottie Julianne Hough showed up at the Cinerama Dome Theatre in Tinseltown looking gorgeous in a lacy beige and red top teamed with red trousers.

Also in the house were stunners like Bella Thorne and Ashley Greene, who had a blast mingling with the film’s stars Lily Collins, Jamie Campbell Bower, and Kevin Zegers.

Slated to hit theaters on August 21st, “The Mortal Instruments: City of Bones” is about a seemingly ordinary teenage girl whose mother is attacked by a demon and taken from her home in New York City, and her quest to get her back.