Pharrell Williams and his wife, model Helen Lasichanh, are expecting their second child. A rep for the singer and Voice coach confirmed the exciting news on Friday with a source adding that the couple has "been wanting another child for a while." On Thursday evening, Pharrell and Helen attended a Chanel dinner in LA, where Helen showed off her growing belly in a striped dress. The pair have been together for nearly a decade and got married in 2013. They are already parents to son Rocket, who was born in 2008.