A term coined by Justin Timberlake to describe the infamous 2004 Janet Jackson Super Bowl halftime incident, it's only surprising that "wardrobe malfunctions" don't happen more often, given the outfits many female celebs and models wear onstage and on the red carpet.
Above, we see Japanese-born K-pop singer Ayumi Lee head off stage for assistance after literally shaking off one of her adhesive bra cups during a 2007 lip-synced performance of her single "Wrongful Meeting." Taking it in stride, Ayumi returned to the stage to finish the number after adjustments were made, probably realizing that it could have been worse, as some other ladies will attest to.