Ex-Danity Kane singer Aubrey O’Day has claimed that Diddy tried to buy former Bad Boy Records artists’ silence by making them sign NDAs in exchange for the publishing rights to their music, RadarOnline.com has learned. O’Day, who declined to sign the agreement, told TMZ that she would have received just $300.30 for “a full release of all claims against Diddy and many other players … I think he would probably be making moves to keep as many people quiet as possible.” “When I went to look at the publishing deal, it said anything but I’m being made whole financially again,” O’Day explained. “In…