Grey's Anatomy star Katherine Heigl has slammed co-star Isaiah Washington for using a homophobic slur at the Golden Globes on Monday night. The actor tried to set the record straight regarding reports in October he got into a scuffle with Patrick Dempsey after Washington allegedly used a homophobic slur toward their co-star TR Knight. After a reporter questioned him on the validity of the on-set incident, Washington denied his involvement saying, "No, I did not call TR Knight a faggot. Never happened, never happened." Heigl told Access Hollywood reporter Shaun Robinson that she disapproved of his use of the slur when referring to the incident saying, "I'm not okay with it. I'm going to be really honest right now, he needs to just not speak in public. Period. I'm sorry, that did not need to be said. I just find it hurtful. I just feel like this is something that should be very much in house we need to deal with and it's among us and the cast and crew and among Shonda (Rimes, the show's creator) and the producers." Washington immediately tried to defend himself after making the comments, insisting he and Dempsey have moved beyond the incident. He adds, "I kiss Patrick Dempsey. We purposely sing 'Ebony And Ivory' every night since October 9 and nobody has written about it."