Photo: Britney Spears and K-Fed ReuniteOops, they did it again! Britney Spears and ex-hubby Kevin Federline put their differences aside and spent the afternoon together this weekend at son Sean Preston's Little League game.

Spears and Federline, who are also parents to son Jayden, 4, were spotted out in Calabasas, Calif., to cheer on their 5-year-old's team, the Westhills Yankees.

The pair "kept their distance from one another and didn't speak" at Sean Preston's game last week, where they were snapped together for the first time since their 2006 divorce, UsMagazine.com reports.

Who else joined the former flames?

Check out the photo inside.