"Preston got his braces on today," the 38-year-old former rapper captioned the pic of his 11-year-old son. "Lookin like a champ!!"
The shiny new dental hardware makes Sean Preston look even more like his 10-year-old brother, Jayden James, who got his own braces on almost a year ago:
Earlier this month, Federline took to Instagram to share a photo of Sean and Jayden in a sweet group pic with his other four children from various relationships. Check out the video below for a look at his adorable kid crew.