tee shirt sunglasses Ashley Tisdale skirt boots bag mom planet blue tan
tee shirt sunglasses Ashley Tisdale skirt boots bag mom planet blue tan

Ashley Tisdale and her mom, Lisa, were on a bikini-shopping spree at Planet Blue in Beverly Hills, on Thursday.

The Hellcats star browsed the racks for quite awhile; trying to find just the right teeny bikini, for the 4th of July weekend festivities, no doubt!

June was a big month for Tisdale -- her Facebook page just reached 10 million followers! The High School Musical Star expressed on her page: "Hey guys check out my thank you video to all my Facebook fans.......we're at over 10 million!"

Check out Ashley's Facebook video message, after the jump ...