Katy Perry was seen exposing her breast in the upcoming video of her latest song Last Friday Night.
In the scene, the colourful singer was seen grabbing her chest when the enacted wardrobe malfunction occurred, reports the Sun.
In the eighties-inspired clip, the 26-year-old played a fictional character called Kathy Beth Terry.
The video showed the star at a party packed with other teens and even vomiting into a rollerskate at one point.
Perry also appeared sporting ugly braces and nerdy glasses elsewhere in the clip.