Mom-to-be Beyonce Knowles and her mom Tina Knowles dazzled in black as the pair walked down the runway during the launch of their clothing line House Of Dereon at Selfridges on September 17, 2011 in London, England. Beyonce, who is pregnant with her first baby with rapper Jay-Z, concealed her baby bump in a plunging sequined trouser suit for the event. As for her baby bump, Beyonce says that she has been having " so much ...