Twilight actor Jackson Rathbone tweeted: 'Sheila [Hafsadi] & I couldn't be happier to have such a beautiful, healthy baby boy, Monroe Jackson Rathbone VI.'
Jackson met Hafsadi, 24, a burlesque dancer, while on tour with his band 100 Monkeys and after five months of pregnancy, announced they were expecting back in February.
The 27-year-old actor, whose real name is Monroe Jackson Rathbone V, continues his family's tradition by naming his newborn son Monroe, who was born at 9:43 a.m., weighing in at 8 pounds, 11 ounces.
Twilight star Cam Gigandet also announced that he is expecting his second child with longtime love Dominique Geisendorff.
Wish all the happiness of the world to these lovely couples.xoxo