Oh, the trials and tribulations of being a diva! Diana Ross did a pop up concert at a New York hotel Monday night, and was rattled by a belligerent fan. This guy pushed his way through the crowd to the front to watch Miss Ross perform. When Diana hit the stage, the tipsy dude poked her, tried to push her, and when she got irritated and tried to slap the guy away and scold him with her finger, he repeatedly flipped her the bird at her. When he tried to grab her boa, security threw him out..