Flashing a nipple almost seems like a rite of passage for female celebs these days, what with how often it keeps happening at the moment.
And last night Rita Ora became the latest lady to join the nip slip hall of fame.
The 'RIP' singer gave fans an eyeful as she took to the stage at Wembley Arena during the Red Bull Culture Clash.
Well these things will happen when you refuse to wear a bra.
Rob's sister Khloe's nipples also attracted a lot of attention when she presented her first episode of 'The X Factor USA' at the end of October.
Kim, you might want to make sure you're always in a bra for the foreseeable future.