Transcript for Secret Menus at Popular Fast Food Restaurants
Finally tonight, we're going to let you in on a secret. Word is out about the latest secret menus at some of our favorite restaurants. Starbuck's, burger king. We went out to uncover the secrets and tell the rest of us what we have been missing. Reporter: I'm at Starbucks. My morning fix. Can I get a cake frappuccino. Reporter: Four shots and white chocolate syrup. I'm ordering off that menu. It's what all the cool kids are doing. Posting their orders online, #secretmenu. It's something other people don't know about and some customers are drawn to that idea. Reporter: Allowing customers to customize and denying all knowledge. Chipotle claims we do not have it. Can I get a quesorido. Wrapped inside a burr rat toe. Whatever this is, it's great. It's basic consumer behavior psychology and might seem more appealing to people. That is until it gets too popular and then they move on to something else. I'm drinking candy floss and twix on TV. These drinks are no longer secret. They're no longer cool. Nick watt, ABC news, los Angeles.
This transcript has been automatically generated and may not be 100% accurate.