Singer Aubrey O'Day, left, and reality TV personalities Holly Madison, Bridget Marquardt and Shana Moakler attend the California Entertainer of the Year's "Heel" Hate

Alberto E. Rodriguez / Getty Images

Singer Aubrey O'Day, left, and reality TV personalities Holly Madison, Bridget Marquardt and Shana Moakler attend the California Entertainer of the Year's "Heel" Hate, One Stiletto at a Time! event in West Hollywood, Calif., on Tuesday, Jan. 12.