HEY, NATALI, YURA STAR

and will perform at Russian supermodel

Naked Heart Foundation Ball benefiting amfAR on Saturday. But all eyes will be on breakout actress

who will be wearing a million dollars worth of pink diamonds from jeweler Jordan Fine. Yura (below) just finished wrapping “Reprisal” with

and

will art direct the Halloweenthemed benefit, which will feature old-fashioned fair stalls with games including Hook a Duck and Wheel of Fortune.