By Meghan Overdeep
Updated Jan 19, 2016 @ 12:00 pm
Britney Spears Headshot 8
Credit: Steve Granitz/WireImage

Britney Spears's sons are serious about dental hygiene. Spears posted a cute black-and-white snap on Instagram of her nearly-identical sons Sean Preston, 10, and Jayden James, 9, enthusiastically going about their morning routine—brushing their teeth, of course! Sean can be seen flashing his pearly whites while younger brother Jayden throws up a peace sign for the photo.

"Brushy brushy brushy!" the 34-year-old mom captioned the photo of her growing boys.

Spears and her family recently returned to Las Vegas for the latest leg of her residency at The Axis at Planet Hollywood Resort & Casino. The singer is reportedly revamping her Britney: Piece of Me show, which is expected to return to the Axis on Feb 13.