Malin Akerman and Roberto Zincone welcome son Sebastian

roberto-zincone-malin-akerman-baby.jpgShortly after giving birth on Tuesday, April 16, Malin Akerman announced the birth of her first son... via Twitter.

The 34-year-old actress tweets, "My husband and I welcomed our beautiful, healthy baby boy to this world this morning! Biggest joy of my life!!! #lovemykid." She and husband Roberto Zincone named their son Sebastian.

Akerman surprised fans last year when she announced her pregnancy... particularly because her marriage to Zincone, an Italian drummer, was a secret. The couple has been together since 2002, when they met as part of the rock band The Petalstones (check out the video below!). Zincone drummed, Akerman sang. They married in 2007.

Photo/Video credit: Getty Images