John Cena is a longtime WWE wrestler whose entrance theme, The Time Is Now, became a surprise meme online when editors cut abruptly to its loud opening to reveal him in unexpected places. The joke spread through Vine and YouTube edits in the mid-2010s, where the sudden music turned an ordinary scene into a dramatic arrival, and it later carried over to TikTok and short-form reaction videos. Its staying power comes from instant recognition: even a few seconds of the theme signals a big entrance without any explanation.