Both parents took to Twitter to confirm the news that they've welcomed a son, named Gunnar Stone.
The couple have not shared any more details about the birth at this stage, however, Pratt did thank Crystalarium, a crystal store in West Hollywood, for “dropping off $27,000 in crystals at the birth.”
The Hills alums, who tied the knot in November 2008, have shared several snaps of expectant mother as her baby bump grew.
Congratulations to the former reality TV stars!
