But of course there's a catch. Beyoncé. Elon Musk. Grimace. One of these was not who I was expecting to top the list of most ...

However, none have achieved quite as much viral fame as the famous Grimace Shake—a limited-edition purple dessert that became ...

What is that big purple mascot? A milkshake? A taste bud? Credit: Eugene Gologursky/Getty Images for Macy's, Inc. It's what we've all been waiting for: We're finally discovering more information ...