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Conjoined Twins Abby and Brittany Hensel have finally broken their silence after being snapped with a baby in tow ... and their message had some help from Dr. Dre .

Here's the deal ... the sisters skyrocketed back into the limelight after TMZ obtained pics of them carrying around a baby in a small Minnesota town. Despite countless attempts to reach the twins for a life update ... there wasn't a peep -- that is, until now.

Over the weekend ... Abby and Brittany posted to TikTok -- the only social media they are on -- with a short vid that featured the assorted baby snaps, with a remix of Dr. Dre's "Nuthin' But A 'G' Thang" spinning. The twins simply wrote "Blessed" ... along with several hashtags, like "twins," "sisterhood" and

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