In an apparent attempt to steal Larry King’s separation thunder, Mel Gibson allegedly ended his relationship with the mother of his baby as well. A source revealed to People magazine Wednesday that the actor amicably split from Oksana Grigorieva, a Russian singer who has been with the actor for over a year. “They’re both working hard on their careers and trying to raise a sweet baby together. They’re still friends and they’ll both raise Lucia [their 5-month-old daughter] together,” the insider claimed. While the Braveheart star is in Mexico filming How I Spent My Summer Vacation, Grigorieva is working on her music career. Gibson, whose rep had no comment on the story, filed for divorce from his wife of 30 years last April and publicly appeared with Grigorieva later that month.