The British superstar teamed up with Ellen DeGeneres to prank the Jamba Juice employees on the . lot during Thursdays .brEllen and Adele pulled off a hilarious hidden camera prank on the . lot! Watch what happened here!.Ellen and Adele pulled off a hilarious hidden .brThank you to T Mobile for sponsoring this . With double the LTE coverage you can know it all from almost anywhere. Click to see how: .brAdele was on Ellen Thursday, and the two teamed up to prank some unsuspecting Jamba Juice employees. Fitted with an earpiece so host Ellen DeGeneres .