Lyrics can be a convenient device for introducing a topic, a blog post, or an article — as long as you get the words right. Screw them up and you’ll look like someone who writes for Yahoo! DIY:
Those aren’t the lyrics from “Santa Claus Is Coming to Town.” It should be:
He sees you when you’re sleeping
He knows when you’re awake
Your readers will recognize your mistake instantly. And it makes them feel superior to you. So, I guess there’s an upside to making a mistake.