No source work, performer, year, or platform is documented for this clip in the facts supplied, and the tag [btko] in its title does not establish an origin on its own. The listing rests on the Portuguese title alone, Ficar feliz, meaning becoming happy, and on a duration of just over four seconds. Online, a clip presented this way works as a compact, title-led marker for a video, message, or post where surrounding words explain the happier turn. Its usefulness comes from that brevity and the meaning of its title, not from a known scene or performer.