updated 12/27/2010 AT 11:00 PM ET
•originally published 12/27/2010 AT 11:50 PM ET
It was very merry Christmas for Sir Elton John.
The singer, 62, and husband David Furnish, 48, welcomed son Zachary Jackson Levon Furnish-John on Dec. 25, John’s rep confirms to PEOPLE.
The 7 lb., 15 oz., baby was delivered via surrogate in California.