By peoplestaff225
Updated August 17, 2009 03:00 PM

Britney Spears and her newly buzz-cut cuties, sons Jayden James, 2 ½, and Sean Preston, 3 ½, cool off with a quick dip at the Ritz-Carlton hotel in Marina del Rey, Calif., on Sunday.

The popstar, 27, will start the second North American leg of her Circus tour on Thursday.