The battle over former rock star Tom Petty's estate continues, the late singer's daughters are suing his widow, Dana York Petty. CNN reports that in a lawsuit filed Wednesday in Los Angeles Superior Court, Adria Petty and Annakim Violette asked for $5 million in damages plus attorney's fees. The daughters, who are from Petty's first marriage to Jane Benyo, claim that that their father's wife of 16 years hasn't allowed them enough say in how the rocker's estate will be managed.