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Lady Antebellum's Hillary Scott and her husband, Chris Tyrrell, have a new family member! On Saturday (Aug. 25), the songstress tweeted a message from her dog, Hobbs, whom she brought home in November of 2011: "Dear Lady A'ers, I would like to introduce you to my new baby sister, Baker! Love, Hobbs =)" The message was accompanied by a pic of the new four-legged "baby" (see below).

After a few days of sharing photos -- including one from a recording studio -- Hillary apologized "for all the pup pics, but I'm pretty caught up in all the cuteness!! =) I just can't help it ..." And this indeed is one cute pup! See for yourself in Baker's video debut: a cameo in Lady A's latest "Webisode Wednesday," filmed during the trio's first day of recording for their new album. (Watch the video below.)

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Hillary will have some time at home with her new bestie, since she and the boys of Lady A don't hit the road until late September. Get a list of their tour dates here.