Kareena Kapoor Khan, who turned 45 today, got her famous nickname "Bebo" from her father Randhir Kapoor, reveals sister Karisma Kapoor. Following the Kapoor family's tradition of quirky pet names like Daboo, Chintu Chipoo, and Lolo, Randhir wanted a cute, name for his younger daughter who was a baby then. Thus, "Bebo" was born, an affectionate nickname that became iconic.