Stepping out to support one of the biggest names in the fashion industry, some of Hollywood's most beautiful ladies attended Rachel Zoe's book launch in New York City on Monday (March 24).

Held at Tiffany & Co., lovely beauties including Victoria's Secret model Lindsay Ellingson, "Carrie Diaries" star AnnaSophia Robb and fashion blogger Olivia Palermo were all on hand to show their love.

Woman of the hour Miss Zoe looked gorgeous as she worked the red carpet while keeping her fans in the loop via social media. Posting a photo from inside the event to her Twitter page, Rachel wrote, "Great night celebrating my book launch @TiffanyAndCo with these loves @prabalgurung @jenmeyerjewelry #livinginstyle."

The book, titled "Living In Style: Inspiration and Advice for Everyday Glamour," is the everyday girls look inside the glamorous and always fashionable mind of one of the fashion world's most recognized stylists.

Not slowing down on her promotional trail, the mommy-of-two will also be at a signing tomorrow, as she tweeted, "Way excited to meet you guys at my #LivingInStyle book signing tomorrow at Barnes & Noble TriBeCa—who's coming?! XoRZ."