Rachel Bilson Jokes About "Always" Being a Bridesmaid at a Friend's Wedding

Rachel Bilson has been keeping a low profile since her Hart of Dixie days, but over the weekend, she stepped out for a very special occasion: her former set costumer Gelareh Khalioun's wedding at the Hummingbird Nest in Santa Susana, CA. The 35-year-old actress served as a bridesmaid once again (she was part of Josh Schwartz and Jill Stonerock's big day back in September 2008) and looked gorgeous in a blush mermaid dress. Rachel and several other guests shared a handful of photos from the gorgeous nuptials on Instagram, including a stunning shot of Rachel and the bride, which she captioned, "My beautiful baby bunns is married. I love you @gegelspot to the moon and back ❤❤❤ #gorgeousbride #youfancy." Rachel also poked fun at the fact that she's always a bridesmaid, using the hashtag "#alwaysabridesmaid."

Rachel and longtime partner Hayden Christensen have been together since 2007 and are parents to 2-year-old daughter Briar Rose. While it's unclear if he attended the wedding, the couple was all smiles while grabbing lunch in LA last week.