Making for one of the most jaw-droppingly beautiful red carpets of the year, some of the finest ladies in Tinseltown headed out for ELLE magazine's 20th Annual Women In Hollywood Celebration on Monday (October 21).

Glamming up the Four Seasons Los Angeles was "Water for Elephants" actress Reese Witherspoon, who stunned in a red, strapless Calvin Klein Collection frock as she posed for photographs before heading in for the main attraction.

Also looking absolutely stunning was "Glee" beauty Lea Michele as well as "Shameless" star Emmy Rossum, who rocked the media area in an Ellie Saab ensemble with matching Christian Louboutin heels.

Shailene Woodley, Melissa McCarthy and Marion Cotillard also joined in on the annual festivities as well as being one of the mag's "Women in Hollywood" issue covergirls along with Witherspoon and Penelope Cruz.