AceShowbiz -

Britney Spears and Ellen DeGeneres invaded a mall in a recent episode of "The Ellen DeGeneres Show". Shoplifting, asking for free ice cream, and scaring people off while sitting at a dining table that's put on display in one of the stores were among their shenanigans.

"I wanted to take advantage of the celebrity lifestyle with my famous friends so I called Britney Spears and took her to the Westfield Fashion Square Mall. I told her we could do whatever we wanted because we're famous and here's what happened ...," Ellen said.

During their antics, Britney also got her first shirt and triggered the security alarm in the process. Wearing a black crop-top and shorts, the singer additionally taught Ellen how to strut through the mall. "Use your hips, because hips don't lie," she told the host.