Sophia Grace Debuts 'Best Friends' Music Video... But Where's Rosie?

Sophia Grace

Sophia Grace in the video for "Best Friends."

Viral video star turned Ellen correspondent Sophia Grace Brownlee has dropped a new original music video called "Best Friends," and -- you guessed it -- it's about her best friends.

Yes, there's shopping. Yes, there are model poses. Yes, there's a trip to Kmart (the 11-year-old has a clothing line with the chain). Yes, there's even some rapping. 

The big question: Where the heck is her amazing (mostly silent) cousin Rosie? How did she not make the BFF cut? Her picture is briefly shown, so she's gone but not forgotten.

Being in the second grade must be a full-time job.