Spears, who left rehab March 20, sat courtside, Hello magazine reports on its Web site.
The singer donned a blonde wig and straw hat as she watched the Houston Rockets play the Lakers at a game on Friday. At another game, Spears went more incognito, sporting a Lakers baseball cap and jersey with big, dark sunglasses.
Spears has also been working since she left rehab. Music producer Sean Garrett told People magazine that he's working with the singer. "It's really coming together right now. I know she'll do exceptionally well now that she's out of rehab," he said.
The details of Spears' divorce settlement are not known, but there have been reports that the proceedings were amicable. At one point, Spears and Federline reportedly left their meeting with lawyers to take a cigarette break.
Before she entered rehab in February, Spears shaved her head bald at a salon in Tarzana, Calif., and hit a photographer's car with an umbrella in a fit of rage.