During the past week, we have caught Oliver singing to himself quite a few times. He tries so hard to make the words come out for the ABCs, the "Happy Birthday" song and "Jingle Bells." And for the past couple of days, he's started to chime in when we sing those three songs. For "Jingle Bells," he yells out the last word, "sleigh," and makes the most excited facial gesture. It's not the best video ever, but below is one we shot of him doing his big ending. Enjoy!