Photo: Britney Expands Her Family

(Splash News)

Over the weekend, troubled pop star Britney Spears and her BFF Sam Lutfi hit up a local L.A.-area pet store, where according to eyewitnesses the singer purchased a handful of animals to add to her already full brood of pets!

In addition to a coat and bed for her spoiled pooch London, insiders tell OK! Brit purchased a pair of goldfish and a bird. Store employees say that the "Gimme More" singer had wanted to keep both goldfish in the same bowl, but they advised her against doing so. "We warned her about it," says one pet expert at the store. "I would not be surprised if the goldfish were both dead in the morning."