( CNN ) -- Sir Elton John is a father . The boy was born on Christmas Day . And he shall be Levon . Or , more accurately , Zachary Jackson Levon Furnish-John , the singer 's publicist said late Monday . `` We are overwhelmed with happiness and joy at this very special moment , '' John and his long-time partner , David Furnish , said in a statement . `` Zachary is healthy and doing really well , and we are very proud and happy parents . '' John and Furnish formalized their relationship in a much-publicized civil partnership ceremony in 2005 after 12 years together . The ceremony was held at the Windsor Guildhall -- the same venue where Britain 's Prince of Wales and Camilla Parker Bowles married . John has a residence in Windsor , outside of London . The baby was born in California via a surrogate , according to Fran Curtis , a representative for the couple . Curtis said she would not discuss the details of the surrogacy arrangements . Like his namesake in John 's early 1970s hit `` Levon , '' the baby boy was born on Christmas Day and weighed 7 pounds , 15 ounces , Curtis said . In addition to `` Levon , '' where the couple apparently snatched one of the baby 's middle names , other classic John songs are likely to take on new meaning , such as `` I Guess That 's Why they Call It The ( Baby ) Blues '' and `` I 'm Still Standing '' for the toddler years . CNN 's KJ Matthews contributed to this report .
Zachary Jackson Levon Furnish-John was born on Christmas Day . `` Levon '' was a hit song for John in the early 1970s . A surrogate had the baby .