How Old Is Hello Kitty In 2024. But hello kitty’s 40th birthday brought an update that astonished fans. Since her debut in 1974, hello kitty continues to be an irreplaceable and precious part of everyone's lives around the world.
Hello kitty wants to promote. In honor of hello kitty’s 50th birthday, here are fun facts about the beloved sanrio character who, turns out, is not a cat.