Beyoncé opened up about her recently announced pregnancy at the launch of the House of Dereon, a fashion line created by the singer and her mother, Tina Knowles. "I am having so much fun, it has been the most fun time now that it has been announced," the singer said in London. "It was really difficult to conceal. But now I can be proud and excited about it, I'm having so much fun shopping – it's great!"

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The singer's fashion line does not include maternity wear, but she was wearing items from the line at the event. "What I'm wearing today is part of the collection; it's not supposed to be [maternity wear], but it actually is really good for the maternity," she said. "We do have some things that I am still trying to rock!"

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