Jackson Rathbone

Twilight's Jackson Rathbone and his girlfriend Sheila Hafsadi have welcomed a baby boy, People reports.

Monroe Jackson Rathbone VI was born on Thursday morning, weighing in at 8 pounds, 11 ounces.

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"Thank you ALL for the love & support! Sheila & I couldn't be happier to have such a beautiful, healthy baby boy, Monroe Jackson Rathbone VI," Rathbone tweeted.

The couple announced the pregnancy in February.