Video may have killed the radio star, but it's launching the careers of quite a few babies. Armed with smartphones and handheld cameras at all times, Mom and Dad are ready to capture their lil one's funniest outtakes at all times. This may have been the year of the breakout YouTube kid star, as the tots in the following videos became overnight sensations while just doing their thing! Check out our favorite videos of the year, and tell us which takes the prize in the comments below!