Meet “Opera Singer” Oksana Grigorieva. The Ukraine-born diva (seen here resting between selections during a performance of “Detskaya”) was once the girlfriend of Timothy Dalton but now is best known as “the woman behind Mel Gibson‘s billion-dollar divorce.” The Braveheart star himself produced the enceinte Grigorieva’s current single “Call My Name” (no relation to the Destiny’s Child

) which the bravehearted among the cher public may hear streaming exclusively from People.com.