Britney Spears and Ellen DeGeneres aren't the most well-behaved shoppers as they proved when cameras followed them to a local mall.

The two displayed their mischievous behavior which included scaring some customers trying to take photos of them and giving advice to a youngster about why he shouldn't attend college.

The pair started out in a department store and later when a small handbag caught Britney's eye, DeGeneres told her to just "take it" because well they were celebrities so they could do that stuff.

Spears and the talk show host continued their naughty antics by going up the down side of an escalator and talking to a young boy, who wants to be a doctor, about why he doesn't need college. Ellen explained that neither she nor Britney went and they turned out great, however, when Spears suggested that maybe he could do both DeGeneres quickly disagreed.

The ladies then got some ice cream and when they sat down to eat they each noticed that people were taking pictures of them.

DeGeneres commented that she felt like she was "on display" and then, in the words of Justin Bieber, said, "We’re like zoo animals in here." A moment later she got up and growled, scaring a woman taking her photo.

At the end of their day, Ellen had one final trick up her sleeve. As she and Britney were lying down in bed, DeGeneres pranked the pop star by placing a toy spider on her. The move definitely freaked Spears out a bit.

Check out the hilarious video below: