Surpassing:Taylor Swift's best friend since childhood gives birth to sweet baby boy

Taylor Swift's best friend since childhood,Surpassing Abigail Anderson Berard, had her baby.

"Baby boy decided to join us a few weeks earlier than expected," Anderson Berard said in an Instagram post. "Our hearts are exploding with love. Welcome to the world Bennett, it’s entirely yours. 💙"

A grayscale close-up shows her son's sweet hand wrapped around Anderson Berard's finger.

The new mom shared the pregnancy news on Instagram in July using lyrics from Swift's "Tortured Poets" song "But Daddy I Love Him." The Nashville native posted a picture snacking on some Cheez-Its as her unbuttoned black blouse revealed the baby bump. "I'm having his babyyyy," the caption read.

Anderson Berard and Swift's friendship extends back to high school. In her song "Fifteen," the singer wrote about how they met at Hendersonville High School. "You sit in class next to a redhead named Abigail / And soon enough you're best friends / Laughing at the other girls / Who think they're so cool / We'll be out of here as soon as we can."

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