The music video, released on April 24, 2014, is known for its quirky hidden-camera concept. Perry appears disguised as five different "world's worst" party entertainers—ranging from a faded Las Vegas showgirl to a Jewish bar mitzvah MC—and crashes real-life birthday celebrations.
Reached number one , extending her record for most consecutive dance club chart-toppers.
"Birthday" was praised for its "buoyant" instrumentation and retro gloss, with critics drawing comparisons to the works of and Daft Punk . Its commercial performance solidified its status as a dancefloor staple:
Peaked at number 17 , marking Perry’s 15th top-20 entry.