Amy Graves / WireImage.com 1 / 7
Amy Graves / WireImage.com 1 / 7

Will Ferrell and his wife helped Conan O'Brien say goodbye on the "Tonight Show," then said hello to a new arrival with baby number three.

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Just hours after the couple performed "Free Bird" on Conan's final show, People reports, the actor and wife Viveca Paulin, who was very obviously pregnant while dancing during the finale, welcomed their third son.

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According to People, they named their baby boy Axel Ferrell, who arrived Saturday morning in Los Angeles. "All the Ferrells are well," their rep said.

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Axel joins older brothers Magnus, 5, and Mattias, 3.