Being a celebrity guest on a talk show isn't always smooth sailing- remember Dakota Johnson's infamous on-air clapback to Ellen DeGeneres over a birthday party invite? Celebrity interviews are a risky - but crucial - element of any talk show, since an exclusive chat with an A-lister can draw huge ratings or generate endless social media debate over a testy exchange. Legendary former Tonight Show host Jay Leno once revealed to Men's Health that a key to success as a host was finding ways to relate to his guests.