Do you believe that your favourite celebrity is a one in a million? Unfortunately, that is probably not the case. We apologise for the bad news. Wonderwall.com is showcasing some of our favourite celebrities and their well-known impersonators, beginning with these two... Double entendre? During a 2014 appearance on "The Tonight Show Starring Jimmy Fallon," comedian Will Ferrell and Red Hot Chili Peppers drummer Chad Smith fueled rumours that they were twins by wearing the same clothes and highlighting how similar they are to one another. (For the record, that's Will on the left and Chad on the right.) Read on to get a closer look.