There is no single famous source behind this clip, which is typical of user-made pet sounds shared on soundboards and social platforms. Cat meow edits became popular online because they turn an everyday pet noise into a joke that works without explanation, and birthday versions are especially shareable because they fit a moment everyone recognises. Creators reuse them for short videos, stories and messages where a human singing voice would feel too formal. The appeal is simple and lasting: a familiar animal sound made unexpectedly celebratory.