Jennifer Lopez arrives at 'A Night to Benefit Raising Malawi and UNICEF' at United Nations headquarters, Wednesday, Feb. 6, 2008.[AP]

Jennifer Lopez is expecting twins, her father says. "They are twins, yes," David Lopez said on Telefutura's "Escandalo TV" program. He said his sister had twins.

"To be a mother is something Jennifer has wanted for many years," Lopez said. "I feel superproud."

The 39-year-old singer, who is married to Marc Anthony, confirmed her pregnancy during a concert in November. "Marc and I are expecting," she told the crowd in Miami.

Lopez and Anthony, 38, were married in 2004.