Clooney and wife Amal on Tuesday welcomed their twins, a boy and a girl, according to their spokesman, Stan Rosenfield, in a witty email to USA TODAY.
'Ella, Alexander and Amal are all healthy, happy and doing fine'.
George, 56, Wednesday British human rights lawyer Amal, 39, in 2014 and they went public with their pregnancy news in February.
Sources confirmed in February that the Oscar victor and the worldwide human rights lawyer were expecting.
Amal Clooney and the Oscar-winning star of films like Ocean's Eleven and Three Kings married in Italy in 2014, making them one of the world's biggest celebrity couples. "We ourselves don't know yet and don't want to know", he said.
The twins were safely delivered at a hospital in London, where the couple have been living during the pregnancy.
'Before, I did not care, I would even say that there was a pretty exciting side to going where no reporter had ever been'.