Rachel Bilson and Kristen Bell slipped on their charity t-shirts and headed out to a Guess, Vanity Fair, and Invisible Children event in LA last night — check out how to get Kristen and Rachel's looks here. Rachel divulged a few details on her upcoming How I Met Your Mother appearance — stay tuned for that on PopSugar Rush — and how much she loves her new Philip Lim bag. When asked about tying the knot, Rachel just said there's "no planning. Not yet." Kristen chatted a bit about her Halloween plans, or lack thereof at this point, despite being a big fan of the holiday. Inside the bash, the girls hung out together and mingled with the crowd during their Thursday night out to support the cause.
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