Credit: Amy Graves/

It's another boy for Will Ferrell!

Hours after performing "Free Bird" on the final Tonight Show with Conan O'Brien, Will Ferrell and wife Viveca Paulin welcomed their third son, Axel.

The boy was born Jan. 23 in Los Angeles, his rep tells

Axel joins older brothers Magnus, 5 1/2, and Mattias, 3.

Ferrell, 42, and Paulin, 40, who wed in 2000, announced they were expecting last September.

He shared his parenting tips to Parade magazine in 2008.

"Don't let them play in old, abandoned refrigerators," he said. "If you're flying with your children, it's better to book them on the same flight as you and not on a separate one, just so they can have more legroom or something. Travel as a family."