More details have emerged behind Kid Rock and Anna Nicole Smith’s run-in at the Kentucky Derby on Saturday. A witness tells Jeannette Walls of MSNBC.com: “Anna Nicole had a video crew and was filming everything, Kid Rock got upset and asked her if she had to have cameras following her every move. She snapped back at him and said, yes, she did. It really escalated, and he flipped the bird at her, and then she said, ‘I can do that, too,’ and flipped the bird back at him. It got pretty ugly, then afterwards, Kid Rock apologized to Anna Nicole’s son for making an obscene gesture in front of him.” Read more.