Showbiz
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The baby boy was born in a Florida hospital on Tuesday and weighed 8lbs 3oz, according to a family statement.
Spokeswoman Samantha Mast said: "John, Kelly and their daughter Ella Bleu are ecstatic and very happy about the newest member of the family.
"Both mother and baby are healthy and doing beautifully."
Benjamin is Travolta and Preston's third child together. Their first son Jett died last year at the age of 16.
The couple previously described the pregnancy as "a miracle".
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