Gwen Stefani, Baby Kingston Rock Letterman

Gwen Stefani performed her best version of "Wind It Up" on The Late Show With David Letterman, and like the incredible mom she is, she even brought along a special guest.

Awww. Little Kingston James McGregor Rossdale even got a cute Letterman t-shirt. It's nice to see that this pop star also seems like a great mom with her head in the right place. Yes. If you're reading this, Britney Spears, we are calling you out.