Elton John has spoken of his unbridled joy at becoming a first-time father at 63. But this picture really tells the story.

In this new photo, the legendary British musician is seen grinning from ear to ear as he holds his son Zachary, who will be two months old on Friday.

John and his partner, David Furnish, welcomed Zachary, via a surrogate, on Christmas Day and having been dividing up the parenting duties ever since. "I knew it would be incredible," John said recently, "but honestly I'd be lying if I said I hadn't been so shocked. I'm like a gibbering wreck in front of him."