Sister, Sister star Tamara Mowry made an appearance on Monday in Beverly Hills at the Summer barbecue at the Switch Boutique. The last time I saw pictures of her was at her sister’s wedding. The Hills Audrina Patridge and One Tree Hill star Sophia Bush dropped by to do a little shopping as well. Sophia also revealed that she and actor Jon Fost up a year ago.

“You can love somebody, and not be in love with them, and I think that was a really valuable lesson. We weren’t ready to get married, but it definitely doesn’t mean we don’t care about each other.”

I agree. Mandy Moore’s man DJ A.M. also attended the barbecue to do what – to deejay. View more pictures after the jump –

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