Gavin Rossdale Kingston Dentist Sherman Oaks Gavin Rossdale Kingston Dentist Sherman Oaks

Kingston Rossdale is NOT to be messed with!

While heading to the dentist with his rock star dad Gavin Rossdale in LA, the trendy tot had no problem mad dogging the cameras. Check out the 5-year-old cutie's face! Even when he's trying to be tough, Kingston is still adorable.

Looks like King's little brother Zuma got mama Gwen Stefani all to himself while these two were out taking care of business. Lucky, lucky!