Rachel Bilson (L), Briar Rose (R).Photo:RACHEL BILSON/INSTAGRAM

RACHEL BILSON/INSTAGRAM
Rachel Bilsonis one proud mom!
“Entering our 9th year…. You are my greatest gift and my whole entire ❤️ I’m so grateful to be your mama!#thisisnine🎂,” she added.
Bilson shares Briar Rose with exHayden Christensen.
In her Instagram Story, Bilson shared a glimpse of a necklace that was personalized with Briar Rose’s name. She explained that it was “a special new necklace” that had arrived just in time for the occasion.
Rachel Bilson shares photo of a necklace with her daughter’s name on it.RACHEL BILSON/INSTAGRAM

While many of Bilson’s fans were quick to extend their congratulatory wishes in the comment section, others also noticed how Briar Rose’s custom t-shirt was a reference toTaylor Swift’s song"Mine"from the 2010 albumSpeak Now.
“Love the Taylor Swift reference 😍 happy birthday Briar!!! 🎉💕,” wrote one fan. Another commented, “omg shes a swiftie i love the shirt.”
Bilson revealed thatBriar Rose is a big Swiftiewhile recalling leaving one ofSwift’s concertsearly during an episode of her podcastBroad Ideasin August.
“We left early. Briar’s friend Aria danced her ass off to ‘I Knew You Were Trouble’ — she was feeling it — and then just turned around, sat in her seat and passed out,” she said.
Briar Rose and her father, Hayden Christensen.RACHEL BILSON/INSTAGRAM

“Everyone around us was laughing because it was so cute. Briar wanted to stay until the end, but her two friends were just done. So we left early. Briar was so mad about that. She was so mad,” continued Bilson. The podcast host noted that Swift’s show was Briar Rose’s first concert.
“For my daughter to see this, I think it’s so rad,” she said. “It’s one woman, she writes her own s—, she’s really talented and she does it and like, look at what she’s done.”
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“Communication is key and just being on the same page, so everything’s about the kid. As long as you put the kid first, everything will be okay,” she explained.
source: people.com