Check out the fan next to RiRi -- he's literally blinded by her beauty!

Rihanna's not necessarily know for "reigning it in," so seeing her go bra-less isn't too unusual. But we can't say we don't celebrate it every time it happens!

The sexy "Diamonds" singer ditched her lingerie for two looks Sunday at fashion week in New York -- the first was a menswear-inspired pajama look. She rocked a white silk, plunging-neckline top and matching wide-legged pants with white heels (and even white nail polish). Later in the day, she switched it up and donned a bright pink mini-skirt and white crop top. The common factor? No bra! Loves!