It looks like Katy Perry's finally gotten tired of showing her cleavage -- just kidding. It's not that the singer is done with dressing to accentuate her, um, assets, it's just that she's seemed to have gotten bored of showing them off the old fashioned way. Enter, diamond cleavage.

While promoting her new movie "Katy Perry: Part Of Me 3D" on Monday in Rio de Janeiro, the recent divorcée wore a high-necked yellow mini dress with strategically-placed diamond cutouts going down the center of her torso. The gaping holes in the dress made it virtually impossible for Katy to be wearing a bra (but, hey, if our bras were deemed "hazardous," we probably would've ditched them, too).

In true Katy fashion, the new face of Popchips arrived with meticulous purple hair and kept the accessories bright with a pair of red studded pumps. Now we're pretty accustomed to Katy looking less than demure, but do you think this latest show of cleavage is too much?

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See more stars who seem pretty keen on showing off their cleavage!

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