Beyonce's clothing deal hits a snag.(Main)

Singer Beyonce and her mother, Tina Knowles , have been sued for $1.5 million by a former business associate who claims they neglected to compensate him for securing a deal involving their House of Dereon clothing line.

Greg Walker, CEO of Icon Entertainment, filed the breach of contract lawsuit this month in state Supreme Court in New York City. He said the two, who design the collection, hired him in August 2003 to help land endorsement and licensing opportunities.

According to Walker, he brokered a $15 million deal for the 24-year-old singer and her …