As Cena pointed out on Last Week Tonight, he and Oliver share the same birthday: April 23, 1977. "Do you know what it is like living in someone's shadow? John Oliver said he thinks of me every birthday now — I have thought about John Oliver for 44 years," Cena joked on The Late Show. "I think this is a psychological warfare tactic by my parents. I try so hard to get my own identity, and just around April 20, I feel pretty good about myself — and then on April 23, I am reminded that I am never, ever possibly going to do anything better than the existence of John Oliver."