After visiting a Target in Westlake, California, the pop star, 31, dressed in a purple sweatshirt, blue sweatpants and sneakers, was spotted at the shop in the parking lot.
Spears clutched a coffee cup as she spoke at length with the artist about his work, reported People magazine.
After perusing the paintings, which were set up just a few feet away from a Party City, she ultimately picked up a large oil painting depicting a Parisian street scene.