Former spouses Britney Spears and Kevin Federline reunited over the weekend at youngest son Jayden James' soccer game in Woodland Hills, Calif.
It really is amazing ... this guy slept with her at least two times.
The 31-year-old "Work Bitch" songbird looked casual in a red turtleneck, skinny jeans, oversized sunglasses, and her hair pulled back in a messy bun.
Federline was joined by his daughter, Kori, with Shar Jackson.
The couple, who married in 2004 and split in 2006, appeared to be on friendly terms. They stood next to each other, watching the game from the sidelines.