Kevin Federline's ex-partner Shar Jackson has blasted Britney Spears for dumping the aspiring rapper via text message. Federline was filmed visibly distraught while reading an SMS message on his mobile phone in Toronto, Canada on 6 November (06) - the day Spears listed as their separation date in divorce papers filed the next day (07NOV06). On tonight's (04DEC06) episode of US TV show THE DR KEITH ABLOW, former MOESHA star Jackson - who was dumped by Federline for Spears in April 2004 when she was six months pregnant with their second child - joins forces with the singer's ex-husband Jason Alexander to discuss her divorce. Jackson says, "I don't really have anything bad to say about him. "To find out that your life is about to change via text mail - that's not cool."